Specter, Sestak stump for votes across Pa.

PHILADELPHIA (AP) — The final push is on as Sen. Arlen Specter tries to hold off a primary challenge from congressman Joe Sestak.

Both candidates will crisscross Pennsylvania on Monday as they make their last pitch to voters before Monday’s Democratic primary.

Specter scheduled events in Erie, Johnstown, Harrisburg, Scranton, the Lehigh Valley and finally Philadelphia. Sestak also planned events on either end of the state.

Polls show the race too close to call after Specter had built what seemed to be an insurmountable lead just a few weeks ago.

Specter has the backing of the Democratic establishment after switching parties last year to avoid a primary battle with a more conservative candidate. Sestak says Specter is a political opportunist interested only in saving his job.