“Democrats from across Montana converged in the capital Sunday to nominate a candidate to fill the state’s only congressional seat, vacated by Republican Rep. Ryan Zinke to lead the U.S. Interior Department. About 150 delegates were choosing from eight candidates, including two legislators and several political newcomers, to represent the Democratic Party in a special election May 25. ‘I come here not as a career politician rising through the ranks,’ said Rob Quist, a well-known entertainer.