French expatriates in New York begin second round of voting
1:44
Tunisia votes in second round run-off
The two-round system is a voting method used to elect a single winner, where the voter casts a single vote for their chosen candidate. However, if no candidate receives the required number of votes, then those candidates having less than a certain proportion of the votes, or all but the two candidates receiving the most votes, are eliminated, and a second round of voting is held.