Campaign posters for Senegal's incumbent President Abdoulaye Wade are seen at a campaign rally in Guediawaye, a suburb of the capital Dakar, February 22, 2012. Senegalese are due to vote in presidential elections on Sunday amid rising violence during protests against Wade's decision to run for a third term in contravention of constitutional limits. REUTERS/Joe Penney (SENEGAL - Tags: POLITICS ELECTIONS)