 She played a central role in the Union Party following the party's 1994 election victory during the Faroese financial crisis and advanced to head of the party and parliamentary leader from 2001 to 2004.She apparently had the chance to become prime minister in 1994, but the position went to Edmund Joensen.Petersen served in the Danish Parliament as a representative from the Faroes from 2001 to 2005 and joined the Venstre party's group in the parliament.