The last time he went down this path, Pat Toomey came pretty darn close to beating PA-RINO Senator Arlen Specter in the 2004 Republican primary in the Keystone State.

It looks like he’s got his hiking shoes on for another trot down the ole’ primary path:

“The fact is, Arlen Specter made this happen,” said Toomey, president of the national limited-government activist group Club for Growth. “I think a Republican senator from Pennsylvania ought to govern based on the conservative ideas at the heart of the Republican Party, and that’s why – Arlen, are you listening? – it is very likely that I will become a candidate for the United States Senate.”

Toomey faces a daunting task in downing Specter, who must be part cat, because he has gone through more political lives than Rudy Giuliani has gone through marriages. And even if Toomey does succeed in toppling the infamous author of the Single Bullet Theory, he faces an uphill battle in an increasingly blue state of Pennsylvania.

The last conservative senator from PA, Rick Santorum, got whomped in 2006 by Bob Casey, Jr. Additionally, the state has gone to the Democratic side in the last two governor elections, as well as the last four or five presidential elections.

So while Toomey may end the long political career of Arlen Specter, all that may do is finally make what is nominally a Democratic seat already into one for real.