*THE BLOGOSPHERE REACTS: Arlen Specter (R-PA D-PA), facing a strong 2010 primary push from Republican congressman Pat Toomey, switches parties, giving the Dems a quasi-60-seat presence in the Senate. This has the 'sphere all riled up. For some spirited commentary, visit Robert Stacey McCain's  blog ("Specter reminds me of the high-school slut trying to sleep [...]

The Post is reporting that Sen. Arlen Specter has decided to become a Democrat:
"Specter's decision would give Democrats a 60 seat filibuster proof majority in the Senate assuming Democrat Al Franken is eventually sworn in as the next senator from Minnesota. (Former senator Norm Coleman is appealing Franken's victory in the state Supreme Court.)
'I have [...]