Brett Lieberman at the great new blog Pennsyltucky Politics (Harrisburg Patriot-News) has this priceless item:

Republicans have had a field day accusing Bob Casey Jr. of trying to avoid debates or take a position on issues.  Now it appears the Casey campaign won’t even acknowledge prepping for Sunday’s “Meet the Press” debate with Rick Santorum.

“He’s been doing prep for the last year and a half since he got into the race,” said spokesman Larry Smar.  What about practice sessions? “I’m not going to get into it,” Smar said.  Who’s playing Rick? “Who cares what we’re doing?” Smar whined.

So, let’s get this straight. You’re taking on the No. 3 Senate Republican, whose debate style is like a pit bull that’s latched onto a small animal, in the nation’s top race. You’re not known as the most dynamic of public speakers. You’re to appear on the top-rated Sunday morning talk show, which has been inundated with media requests for coverage, and will be watched by every top pundit. And you claim you’re not doing prep work.  Can you say credibility problem?

Meanwhile, we’ve learned that Alex Charyna at Santorum blog will be liveblogging the debate.  And Mark Kilmer of Rightsided.org will be including the debate in his regular Sunday show round-up at Redstate.