BACKERS of detained opposition presidential candidate Bassirou Diomaye Faye are taking his campaign to the streets of Senegal with posters and bracelets, drumming up support in the hope he will be released before the vote. Faye was relatively unknown within Senegal's tumultuous political scene until popular firebrand opposition leader Ousmane Sonko backed his candidacy for the March 24 vote. Sonko, who enjoys widespread support among Senegal's jobless youths, is also in detention and disqualified from the race over a defamation conviction. Sonko denies any wrongdoing. Faye, who is facing charges including defamation and contempt of court, remains eligible because there has been…