Why would Barack Obama superdelegate Claire McCaskill forecast a huge Hillary Clinton victory in the Keystone state? How does this help her guy?

And what is it with Missouri pols saying things that can cause consternation for their preferred presidential candidate?

Earlier this week, it was Clinton supporter, Congressman Emanuel Cleaver who predicted Barack Obama will be the Democratic nominee and will win in November. (Although other comments weren't flattering to Obama and his aspirations).

Today it was the Missouri junior senator's turn. She was on CNN this morning talking up her guy about 7:30 a.m.

She declined to echo comments from other Obama superdelegates and suggest that Clinton should drop out. She talked about Clinton as a formiable opponent.

She dutifully said Obama will lose Pennsylvania (good strategy for lowering expectations). But then she went further. She said he will probably lose by double digits even though polls have shown the race tightening and one shows Obama pulling ahead.

Uh, did the senator not know most strategists have said Obama needs to keep the number below 10 to ensure Clinton doesn't grab the headlines and momentum? Was it practical realism? Or was it this a brilliant strategic move on McCaskill's part for reeeaaally lowering expectations?

She also touted Obama's vaunted $40 million haul in March and emphasized how so much of it has come from small donations and that 218,000 were folks donating for the first time.

But neither McCaskill or any of the other teevee talking heads addressed this morning the questions this Prime Buzz correspondent is wondering.

How do they account for Obama's drop from March to February? He raised $55 million in February compared to March. (To be fair, Clinton also saw a drop from February to March going from $35 million to $20 million).

And of Obama's $40 million, how much was before March 14 when the Rev. Jeremiah Wright's comments went viral and how much was after? Was the $20 million evenly paced throughout the month or did the numbers spike or plummet after the controversy broke?

Wouldn't that information be important to determine whether folks are rallying around Obama in the wake of the controversy or were scared off?

Updated, hat tip to Jasper.