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 …

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.

Veteran GOP Sen. Specter becomes Democrat  —  WASHINGTON (CNN) — Veteran Pennsylvania Sen. Arlen Specter switched from the Republican to the Democratic Party on Tuesday, saying he has found himself increasingly “at odds with the Republican philosophy.”  —  “This is a painful decision.

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 …

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: 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 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.

Specter on Jeffords  —  When Jim Jeffords became an “Independent” in 2001, Specter wasn't happy.  He said, “I intend to propose a rule change which would preclude a future recurrence of a Senator's change in parties, in midsession, organizing with the opposition, to cause the upheaval which is now resulting.”

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 …

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.