With the $789 billion economic stimulus package he helped broker set for a vote in the U.S. House and Senate, Sen. Arlen Specter, R-Pa., phoned home Thursday to unhappy members of the Pennsylvania State Republican Committee. The conference call was initiated by Specter, his office said. It was a "conversation" to explain his thinking for backing the spending plan that Democrats hope will deliver jobs for the tanking U.S. economy. But a growing chorus of Pennsylvania state Republican officials say their faith in Specter is irretrievably broken. And some are vowing to defeat Specter in the Republican primary in 2010....