Former US representative Joseph P. Kennedy 2d

Warchest: $1.9 million

Chance of running: Unclear. He hasn’t said whether or not he would run.

Pro: Carries an easily identifiable name into a race that will be short and sweet. He also has a background in Congress, holding the Eighth District seat for six terms.

Con: His candidacy would test the state’s affinities for Kennedys. Senator Edward M. Kennedy holds the other seat and, despite questions of his health, political insiders expect his seat to stay in the family. The only question being which family member.