Washington (CNN) - Facing a backlash from the liberal wing of their party, Sen. Evan Bayh and other centrist Democrats are examining their re-election options and deciding to simply walk away, political analysts note.
"Because Democrats are scared, some people are saying 'it's not worth it ... there's not a place for my voice,' " said political analyst Jennifer Donahue. "It's looking like an exodus - between him and Sen. Chris Dodd and open seats that look like they could easily be Republican pickups."
But it not's just centrist Democrats feeling the heat from the edges of their party - former GOP Rep. J.D. Hayworth announced on Monday that he would take on Sen. John McCain, the Republican Party's last presidential candidate, in his home state of Arizona.
Bayh, an Indiana Democrat, announced Monday that he will not seek re-election in November. Bayh is the third Democratic senator to announce he is retiring. Dodd of Connecticut and Sen. Byron Dorgan of North Dakota previously said they would not seek re-election.
"Congress is not operating as it should," Bayh said at a news conference in Indianapolis, Indiana, adding there's too much partisanship and "the people's business is not getting done."