Incumbent Senegalese President Abdoulaye Wade holds up ballot papers before voting at a polling station during the second round of presidential polls, in the capital Dakar March 25, 2012. Senegal voted in a run-off election on Sunday pitting octogenarian President Abdoulaye Wade, whose bid for a third term has triggered violent protests, against former ally and prime minister Macky Sall. REUTERS/Finbarr O'Reilly (SENEGAL - Tags: POLITICS ELECTIONS)