New York TimesSpecter Could Face Challengers in Democratic PrimaryFOXNewsAt least two potential Democratic candidates seem reluctant to clear the field for Sen. Arlen Specter to run for re-election as a member of their party.Video: Specter Shocks Capitol Hill, Becomes a Dem The Associated PressAP: GOP group launches anti-Specter robocalls The Associated PressLos Angeles Times - WFMZ-TV Online - Milwaukee Journal Sentinel - TIMEall 4,870 news articles