The race for Democratic U.S. Rep. Tammy Baldwin?s seat has another contender, this time a political newcomer with military experience. Matt Silverman, 29, of Madison, has decided to run for Congress. The UW-Madison graduate joins a field of Democratic candidates who include state Reps. Mark Pocan and Kelda Helen Roys, both of Madison, and Dane County Treasurer Dave Worzala. No Republicans have entered the race yet.