To continue your analogy, by your logic the Battle of Gettysburg would've been fought in Buffalo. When fighting a battle, one doesn't cede ground needlessly as you're advocating here.
The battle is where the battle is, not where you want it to be.
You go vote Constitution Party as a sour grapes reaction to the fact that Arlen Specter won, AS HE HAS FOR THE PAST TWO PLUS DECADES, and you are literally abandoning the field of battle.
The Democrats have one prevailing ideology...defeat the Republicans, right now, it appears that a good number of people in this thread share the Dems goal in the upcoming elections in PA.
I have one prevailing ideology, defeat the Democrats. Had I worked for Toomey, I would now be ready to vote for the GOP candidate, and would be looking forward to the next elections, where Toomey should run to replace Specter's vacated seat, with the GOP's backing.
There are few members of the US Senate as conservative as Rick Santorum, and Rick backed Specter.
Why?
Because he understands the necessity of the Party supporting the incumbents.