True but Toomey only lost by 51 to 49%. With strong Bush/Santorum backing the base and fence-sitters could have been energized just enough to pull Toomey over the top. In a close election sometimes that's what it takes but since Santorum chose the liberal to support it's not now suprising to see a backlash from conservatives against him.
True, but if Santorum with his 90+ ACU rating loses in the upcoming election to a liberal Democrat then the conservatives who didn't vote for him will be responsible for the outcome.
BTW if Bush and Santorum had supported Toomey and if Specter won, then both Alito and Roberts would not be sitting on the SC.
Also, there was the risk of Casey beating the more conservative Toomey.
The bottom line is the president supported the R incumbent (who BTW voted 75% conservative in 2004) and took the approach that if the people of PA want somebody more conservative, it is up to them to vote that way. The bottom line is the president wasn't willing to risk Arlen's support in the WOT and with SC judges when all the voting R electorate had to do was go out and vote for Toomey.
The registered Rpublicans of Pennsylvania didn't even elect Toomey as the R nominee. They are responsible for what happened. It is called indiviudal responsibility.