marin first joined the udp in 2007, where he submitted his nomination to contest the 2007 united democratic party (udp) corozal bay standard-bearer convention and election. he was the only udp candidate who submitted his nominations in that convention and therefore, won unopposed. after the convention concluded, marin then prepared himself to go head to head against deputy prime minister, juan vildo marin of the people’s united party (pup) in the 2008 general election. vildo marin was the area representative for corozal bay for 19 consecutive years and marin new that it was not an easy task to turn corozal bay red. marin came up with multiple health policies that will woo the electorate to vote for him. he also toured his constituency and manage to get a view of how "bad" everything in corozal bay was. during the campaign period in the of the 2008 election, marin proposed better health care solutions as well as improving infrastructure for the people of his constituency. he also campaigned heavily especially in the urban areas of the corozal district where there were more electorate. after a determined campaign, marin finally ended his opponent’s long time political career. marin finished first to vildo marin gaining 59.36% of the vote and 2,467 of the popular vote.