Basque separatist leader Arnaldo Otegi, General Coordinator of Basque nationalist coalition EH Bildu, attends a news conference at a counter-summit in Irun, Spain, on the eve of the Biarritz G7 summit in France, August 23, 2019. REUTERS/Stephane Mahe 

Basque separatist leader Arnaldo Otegi, General Coordinator of Basque nationalist coalition EH Bildu, attends a news conference at a counter-summit in Irun, Spain, on the eve of the Biarritz G7 summit in France, August 23, 2019. REUTERS/Stephane Mahe 

Basque separatist leader Arnaldo Otegi, General Coordinator of Basque nationalist coalition EH Bildu, attends a news conference at a counter-summit in Irun, Spain, on the eve of the Biarritz G7 summit in France, August 23, 2019. REUTERS/Stephane Mahe 

Basque separatist leader Arnaldo Otegi, General Coordinator of Basque nationalist coalition EH Bildu, attends a news conference at a counter-summit in Irun, Spain, on the eve of the Biarritz G7 summit in France, August 23, 2019. REUTERS/Stephane Mahe 

Basque nationalist politicians Arnaldo Otegi and Andoni Ortuzar arrive to the International Event to Advance in the Resolution of the conflict in the Basque Country, following Armed Basque separatists ETA announcement of their dissolution in Cambo-les-Bains, France May 4, 2018. REUTERS/Vincent West 

(L-R) Politicians Pello Urizar, Maddalen Iriarte, lawyer Brian Currin, Basque politician Arnaldo Otegi, Mayor of Bayonne Jean Rene Etchegary and politician Andoni Ortuzar gather before the International Event to Advance in the Resolution of the conflict in the Basque Country, following Armed Basque separatists ETA announcement of their dissolution, in Cambo-les-Bains, France May 4, 2018. REUTERS/Vincent West 

Basque separatist leader Arnaldo Otegi, General Coordinator of Basque nationalist coalition EH Bildu, waits to speak during an EH Bildu conference, alongside Maddalen Iriarte, Bakartxo Ruiz and Miren Larrion, following an apology released by armed separatists ETA on Friday and amid news of the groups dissolution, in Bilbao, Spain April 21, 2018. REUTERS/Vincent West 

Basque separatist leader Arnaldo Otegi, General Coordinator of Basque nationalist coalition EH Bildu, waits to speak during an EH Bildu conference, following an apology released by armed separatists ETA on Friday and amid news of the groups dissolution, in Bilbao, Spain, April 21, 2018. REUTERS/Vincent West 

Basque separatist leader Arnaldo Otegi, General Coordinator of Basque nationalist coalition EH Bildu, is seen on a phone screen as he speaks during an EH Bildu conference, following an apology released by armed separatists ETA on Friday and amid news of the groups dissolution, in Bilbao, Spain, April 21, 2018. REUTERS/Vincent West 

Arnaldo Otegi, General coordinator of pro-Basque Independence EH Bildu Party delivers a news conference in Bilbao, February 10, 2018. REUTERS/Vincent West 

Arnaldo Otegi, General coordinator of pro-Basque Independence EH Bildu Party delivers a news conference in Bilbao, February 10, 2018. REUTERS/Vincent West 

Arnaldo Otegi, General coordinator of pro-Basque Independence EH Bildu Party delivers a news conference in Bilbao, February 10, 2018. REUTERS/Vincent West 

Garbine Aranburu of trade union LAB, Adolfo Munoz of trade union ELA and Arnaldo Otegi of pro-Basque independence party EH Bildu take part in a demonstration against Article 155 of the Spanish Constitution allowing the central Government to take control of Catalan institutions, in Bilbao, November 4, 2017. REUTERS/Vincent West 

Garbine Aranburu of trade union LAB, Adolfo Munoz of trade union ELA and Arnaldo Otegi of pro-Basque independence party EH Bildu take part in a demonstration against Article 155 of the Spanish Constitution allowing the Spanish Government to take control of Catalan institutions, in Bilbao, November 4, 2017. REUTERS/Vincent West 

(7L-R) Garbine Aranburu of trade union LAB, Adolfo Munoz of trade union ELA and Arnaldo Otegi of Basque nationalist party EH Bildu, take part in a demonstration against Article 155 of the Spanish Constitution allowing the Spanish Government to take control of Catalan institutions, in Bilbao, November 4, 2017. The banner reads "Democracy and the right to decide". REUTERS/Vincent West 

Pro-Basque independence leader Arnaldo Otegi walks behind a banner that reads "Vote to Decide. Democracy. Catalonia, We Are with You" during a march organised by pro-Basque independence organization Gure Esku Dago (In Our Hands) in favour of a planned referendum on the independence of Catalonia, in Bilbao, Spain, September 16, 2017. REUTERS/Vincent West 

Pro-Basque independence leader Arnaldo Otegi walks behind a banner that reads "Vote to Decide. Democracy. Catalonia, We Are with You" during a march organised by pro-Basque independence organization Gure Esku Dago (In Our Hands) in favour of a planned referendum on the independence of Catalonia, in Bilbao, Spain, September 16, 2017. REUTERS/Vincent West 

Arnaldo Otegi, general coordinator for pro-Basque independence party EH Bildu, addresses the party's congress at the Palacio Euskaldun, Bilbao, Spain June 17, 2017. REUTERS/Vincent West 

Arnaldo Otegi (L), general coordinator for pro-Basque independence party EH Bildu talks to Sinn Fein Member of European Parliament Martina Anderson (2-L) during the party's congress at the Palacio Euskaldun in Bilbao, Spain June 17, 2017. REUTERS/Vincent West 

Arnaldo Otegi, general coordinator for pro-Basque independence party EH Bildu, lines up with members of EH Bildu's political committee, during the party's congress at the Palacio Euskaldun, in Bilbao, Spain June 17, 2017. REUTERS/Vincent West? 

Arnaldo Otegi, general coordinator for pro-Basque independence party EH Bildu, lines up with members of EH Bildu's political committee, during the party's congress at the Palacio Euskaldun, in Bilbao, Spain June 17, 2017. REUTERS/Vincent West 

Arnaldo Otegi (C), general coordinator for pro-Basque independence party EH Bildu, raises his fist during the party's congress at the Palacio Euskaldun, Bilbao, Spain June 17, 2017. REUTERS/Vincent West 

Arnaldo Otegi (C), general coordinator for pro-Basque independence party EH Bildu, applauds alongside Maddalen Iriarte (L) and Ainhoa Beola during the party's congress at the Palacio Euskaldun, in Bilbao, Spain June 17, 2017. REUTERS/Vincent West 

Arnaldo Otegi (C), general coordinator for pro-Basque independence party EH Bildu, applauds during the party's congress at the Palacio Euskaldun, in Bilbao, Spain June 17, 2017. REUTERS/Vincent West 

Arnaldo Otegi (3-R), general coordinator for the pro-Basque independence party, EH Bildu, holds up a card reading "BAI" (Yes), during the party's congress at the Palacio Euskaldun, in Bilbao, Spain June 17, 2017. REUTERS/Vincent West 

Arnaldo Otegi, spokesperson for pro-Basque independence coalition party EH Bildu, delivers a speech on the Basque peace process, alongside EH Bildu MEP Josu Juaristi, during a seminar organised by GUE/NGL (Confederal Group of the European United Left/Nordic Green Left), in San Sebastian, Spain June 6, 2017. REUTERS/Vincent West 

Arnaldo Otegi, spokesperson for pro-Basque independence coalition party EH Bildu, delivers a speech on the Basque peace process during a seminar organised by GUE/NGL (Confederal Group of the European United Left/Nordic Green Left), in San Sebastian, Spain June 6, 2017. REUTERS/Vincent West 

Arnaldo Otegi (L), spokesperson for pro-Basque independence coalition party EH Bildu, arrives to discuss the Basque peace process alongside Gabi Zimmer (C), president of the GUE/NGL (Confederal Group of the European United Left/Nordic Green Left), and Josu Juaristi, MEP for EH Bildu in San Sebastian, Spain June 6, 2017. REUTERS/Vincent West 

Arnaldo Otegi, spokesperson for pro-Basque independence coalition party EH Bildu, waits to discuss the Basque peace process during a seminar organised by GUE/NGL (Confederal Group of the European United Left/Nordic Green Left), in San Sebastian, Spain June 6, 2017. REUTERS/Vincent West 

Arnaldo Otegi (L), spokesperson for pro-Basque independence coalition party EH Bildu, arrives to discuss the Basque peace process alongside Gabi Zimmer (R), president of the GUE/NGL (Confederal Group of the European United Left/Nordic Green Left), in San Sebastian, Spain June 6, 2017. REUTERS/Vincent West 

Arnaldo Otegi (L), spokesperson for pro-Basque independence coalition party EH Bildu, arrives to discuss the Basque peace process alongside Gabi Zimmer (R), president of the GUE/NGL (Confederal Group of the European United Left/Nordic Green Left), in San Sebastian, Spain June 6, 2017. REUTERS/Vincent West 

Arnaldo Otegi, general secretary of Sortu and Anita Lopepe (EH Bai) hold a news conference following the announcement of disarmament by armed separatists ETA in Bayonne April 8, 2017. REUTERS/Vincent West 

Arnaldo Otegi, general secretary of Sortu and Anita Lopepe (EH Bai) hold a news conference following the announcement of disarmament by armed separatists ETA in Bayonne April 8, 2017. REUTERS/Vincent West 

Arnaldo Otegi, general secretary of pro Basque independence party Sortu, poses following an interview with Reuters about Friday's announcement of disarmament by separatist group ETA in Bilbao, Spain April 7, 2017. REUTERS/Vincent West 

Arnaldo Otegi, general secretary of pro Basque independence party Sortu, poses following an interview with Reuters about Friday's announcement of disarmament by separatist group ETA in Bilbao, Spain April 7, 2017. REUTERS/Vincent West 

Arnaldo Otegi, general secretary of pro Basque independence party Sortu, poses following an interview with Reuters about Friday's announcement of disarmament by separatist group ETA in Bilbao, Spain April 7, 2017. REUTERS/Vincent West 

Arnaldo Otegi, general secretary of pro Basque independence party Sortu, poses following an interview with Reuters about Friday's announcement of disarmament by separatist group ETA in Bilbao, April 7, 2017. REUTERS/Vincent West 

Basque trade union leader Ainhoa Etxaide (ELA) talks to Rafaela Romero (PSE), alongside Laura Perez (Podemos), Arnaldo Otegi (Sortu), Txiki Munoz (ELA), Nagua Alba (Podemos), Andoni Ortuzar (PSE) and Koldo Martinez (Geroa Bai) during a joint declaration by political parties and trade unions in favour of planned disarmament by armed Basque group ETA, in Bilbao, northern Spain, April 5, 2017. REUTERS/Vincent West 

Arnaldo Otegi, leader of Basque nationalist party Sortu, talks to the press before a joint declaration by political parties and trade unions in favour of planned disarmament by armed Basque group ETA, in Bilbao, northern Spain, April 5, 2017. REUTERS/Vincent West 

Arnaldo Otegi, leader of Basque nationalist party Sortu, arrives to a joint declaration by political parties and trade unions in favour of planned disarmament by armed Basque group ETA, in Bilbao, northern Spain, April 5, 2017. REUTERS/Vincent West 

Arnaldo Otegi (L), leader of nationalist party Sortu, listens to a joint declaration by political parties and trade unions in favour of planned disarmament by armed Basque group ETA, in Bilbao, northern Spain, April 5, 2017. REUTERS/Vincent West 

(Front R) Basque trade union leader Ainhoa Etxaide (ELA) talks to Rafaela Romero (PSE), alongside (L-R) Laura Perez (Podemos), Arnaldo Otegi (Sortu), Txiki Munoz (ELA), Nagua Alba (Podemos), Andoni Ortuzar (PSE) and Koldo Martinez (Geroa Bai) during a joint declaration by political parties and trade unions in favour of planned disarmament by armed Basque group ETA, in Bilbao, northern Spain, April 5, 2017. REUTERS/Vincent West TPX IMAGES OF THE DAY 

(L-R) Basque political and trade union leaders Laura Perez (Podemos), Arnaldo Otegi (Sortu), Nagua Alba (Podemos), Txiki Munoz (ELA),Txiki Munoz (ELA), Ainhoa Etxaide (LAB) and Andoni Ortuzar (PNV) deliver a joint declaration in favour of planned disarmament by armed Basque group ETA, in Bilbao, northern Spain, April 5, 2017. REUTERS/Vincent West 

Basque premier Inigo Urkullu (R) greets Basque nationalist leader Arnaldo Otegi during Urkullu's swearing-in ceremony at his inauguration for his second term as premier in front of the Oak of Guernica, northern Spain November 26, 2016. REUTERS/Vincent West 

Sortu leader Arnaldo Otegi (2nd R), candidate for Gipuzkoa province with coalition party EH Bildu in upcoming Basque regional parliament elections on September 25, applauds with candidates Maddalen Iriarte, Jasone Agirre, and Miren Larrion (L-R) at the start of the electoral campaign in Bilbao, Spain September 8, 2016. Spain's Constitutional Court disqualified Otegi's candidature on Monday. REUTERS/Vincent West 

Sortu leader Arnaldo Otegi, candidate for Gipuzkoa province with coalition party EH Bildu in upcoming Basque regional parliament elections on September 25, delivers a speech at the start of the electoral campaign in Bilbao, Spain September 8, 2016. Spain's Constitutional Court disqualified Otegi's candidature on Monday. REUTERS/Vincent West 

Sortu leader Arnaldo Otegi, candidate for Gipuzkoa province with coalition party EH Bildu in upcoming Basque regional parliament elections on September 25, delivers a speech at the start of the electoral campaign in Bilbao, Spain September 8, 2016. Spain's Constitutional Court disqualified Otegi's candidature on Monday. REUTERS/Vincent West 

Sortu leader Arnaldo Otegi, candidate for Gipuzkoa province with coalition party EH Bildu in upcoming Basque regional parliament elections on September 25, delivers a speech at the start of the electoral campaign in Bilbao, Spain September 8, 2016. Spain's Constitutional Court disqualified Otegi's candidature on Monday. REUTERS/Vincent West 

Sortu leader Arnaldo Otegi, candidate for Gipuzkoa province with coalition party EH Bildu in upcoming Basque regional parliament elections on September 25, delivers a speech at the start of the electoral campaign in Bilbao, Spain September 8, 2016. Spain's Constitutional Court disqualified Otegi's candidature on Monday. REUTERS/Vincent West 

Sortu leader Arnaldo Otegi (2nd R), candidate for Gipuzkoa province with coalition party EH Bildu in upcoming Basque regional parliament elections on September 25, sits with candidates Maddalen Iriarte, Jasone Agirre, and Miren Larrion (L-R) at the start of the electoral campaign in Bilbao, Spain September 8, 2016. Spain's Constitutional Court disqualified Otegi's candidature on Monday. REUTERS/Vincent West 

Sortu leader Arnaldo Otegi (R), candidate for Gipuzkoa province for coalition party EH Bildu in upcoming Basque regional parliament elections, speaks at an electoral meeting in San Sebastian, Spain, September 6, 2016. REUTERS/Vincent West 

Sortu leader Arnaldo Otegi (R), candidate for Gipuzkoa province for coalition party EH Bildu in upcoming Basque regional parliament elections, speaks at an electoral meeting in San Sebastian, Spain, September 6, 2016. REUTERS/Vincent West 

Sortu leader Arnaldo Otegi (R), candidate for Gipuzkoa province for coalition party EH Bildu in upcoming Basque regional parliament elections, speaks at an electoral meeting in San Sebastian, Spain, September 6, 2016. REUTERS/Vincent West 

Sortu leader Arnaldo Otegi (R), candidate for Gipuzkoa province for coalition party EH Bildu in upcoming Basque regional parliament elections, speaks at an electoral meeting alongside reserve candidate Maddalen Iriarte (2nd L) in San Sebastian, Spain, September 6, 2016. REUTERS/Vincent West 

Reserve candidate Maddalen Iriarte listens to Sortu leader Arnaldo Otegi, candidate for Gipuzkoa province for coalition party EH Bildu in upcoming Basque regional parliament elections, during an electoral meeting in San Sebastian, Spain, September 6, 2016. REUTERS/Vincent West 

Sortu leader Arnaldo Otegi (C), candidate for Gipuzkoa province for coalition party EH Bildu in upcoming Basque regional parliament elections, presents his electoral team in San Sebastian, northern Spain September 2, 2016. REUTERS/Vincent West 

Sortu leader Arnaldo Otegi (L), candidate for Gipuzkoa province for coalition party EH Bildu in upcoming Basque regional parliament elections, looks at his lawyer Inigo Iruin during an electoral meeting in San Sebastian, northern Spain September 2, 2016. REUTERS/Vincent West 

Sortu leader Arnaldo Otegi (R), candidate for Gipuzkoa province for coalition party EH Bildu in upcoming Basque regional parliament elections, is observed by team member Iratxe Esnaola during an electoral meeting in San Sebastian, northern Spain September 2, 2016. REUTERS/Vincent West 

Sortu leader Arnaldo Otegi (R), candidate for Gipuzkoa province for coalition party EH Bildu in upcoming Basque regional parliament elections, is observed by team member Iratxe Esnaola during an electoral meeting in San Sebastian, northern Spain September 2, 2016. REUTERS/Vincent West 

A woman walks past a banner reading Otegi, in reference to Sortu leader Arnaldo Otegi, candidate for Gipuzkoa province for coalition party EH Bildu in upcoming Basque regional parliament elections, in Bilbao, northern Spain, August 29, 2016. REUTERS/Vincent West