Statement by Senator Arlen Specter  —  I have been a Republican since 1966.  I have been working extremely hard for the Party, for its candidates and for the ideals of a Republican Party whose tent is big enough to welcome diverse points of view.  While I have been comfortable being a Republican, my Party has not defined who I am.

Two Republicans blame conservatives  —  Two leading Republicans say Sen. Arlen Specter's decision to become a Democrat highlights the hostility moderates feel from an increasingly conservative GOP.  —  “You haven't certainly heard warm encouraging words about how [the GOP] views moderates …

Specter: ‘The disappointment runs in both directions’  —  WASHINGTON (CNN) — Veteran Pennsylvania Sen. Arlen Specter said Tuesday that he switched from the Republican to the Democratic Party.  —  “I know I'm disappointing many of my colleagues,” he said at a news conference.

Unprincipled Hack (D-PA)  —  When a politician switches parties, it's customary for the party he's abandoned to denounce him as an unprincipled hack, and the party he's joined to praise him as a brave convert who's genuinely seen the light.  But I think it's pretty clear that Specter is an unprincipled hack.

Specter Switches Parties  —  Senator Arlen Specter of Pennsylvania said on Tuesday he would switch to the Democratic party, presenting Democrats with a possible 60th vote and the power to break Senate filibusters as they try to advance the Obama administration's new agenda.

Snowe: GOP Has Abandoned Principles; Specter Switch “Devastating”  —  Sen. Olympia Snowe of Maine, one of the few remaining moderate Republicans in the Senate, said Tuesday that Arlen Specter's abandonment of the GOP is “devastating,” both “personally and I think for the party.”

Specter switching parties  —  A source involved in the talks confirms that Senator Arlen Specter will switch to the Democratic Party, a dramatic move putting the Democrats within reach of two votes in the Senate.  —  The move stands to put the White House's agenda on a fast-track …

Another Triumph for the Club for Growth  —  With Arlen Specter's defection, all that stands between the Democrats and a 60-seat Senate majority are Norman Coleman's lawyers.  I wish them every success - but they have not exactly been on an winning streak to date.

Snowe calls Specter move ‘devastating’  —  WASHINGTON (CNN) - Sen. Olympia Snowe — one of the three moderate Republicans including Arlen Specter who supported President Obama's stimulus package — told CNN Tuesday that she has also been approached many times about becoming a Democrat, but that it hasn't happened for a while.

Specter tried to block party switching  —  This mind-bending revelation from my colleague Eamon Javers:  —  Back in '01, when Vermont Republican Jim Jeffords went independent so he could caucus with the Democrats, a senator took to the floor to suggest the Senate alter its rules …

CNN's Rick Sanchez calls out DeMint's vapid talking point: ‘What the hell does that mean?’  —  Today, Sen. Jim DeMint (R-SC) appeared on CNN to talk about Sen. Arlen Specter's switch to the Democratic party.  Host Rick Sanchez asked DeMint about Specter's statement that the Republican party …

Specter move caught GOP leaders by surprise  —  Senate Republican leaders said they had received no heads-up from Sen. Arlen Specter (Pa.) about his decision to leave the Republican Party and run for reelection as a Democrat.  —  Specter told Senate Majority Leader Harry Reid (D-Nev.) …