Breaking: Arlen Specter to switch to Democratic party

Sen. Arlen Specter (R-PA), is reportedly switching to the Democratic party. File photo from February. (Photo by Mark Wilson/Getty Images)

Inquirer staff writer Tom Fitzgerald reports:

Arlen Specter is becoming a Democrat today, confirmed by high ranking Democratic sources.

Specter faced a strong primary election challenge from former GOP Congressman Pat Toomey.

Further details were not immediately available; a news conference is planned later today.

UPDATE: Sen. Arlen Specter will switch parties, run as Democrat in 2010.