The message here seems to be somewhere between "no thanks, mind your own business" and "we're mad as hell and we aren't going to take it anymore":
Within hours of Sen. Evan Bayh's (D-Ind.) retirement announcement last week, establishment Democrats in Indiana and Washington were signaling that Rep. Brad Ellsworth (D-Ind.) was their preferred favorite to succeed him. And by Friday, the last day to file for office, Ellsworth had announced his intention to run for the Senate seat.