Santos & Mockus (Columbia)
http://www.colombiareports.com/colombia-news/2010-elections/9394-santos-and-mockus-neck-and-neck-in-latest-voter-poll.html
http://www.colombiareports.com/colombia-news/2010-elections/9394-santos-and-mockus-neck-and-neck-in-latest-voter-poll.html