Factbox-Top candidates in Venezuela’s opposition primary

Voters in Venezuela will on Sunday choose a unity candidate from among 10 hopefuls to represent the country's opposition in 2024 presidential elections, when President Nicolas Maduro is expected to seek re-election. The primary is the first held by Venezuela's opposition in over a decade. Favorite Maria Corina Machado is barred from holding public office, in a move criticized by the opposition and the U.S alike, and it is not clear what will happen if she wins the primary.