Onetime booster Bill Kristol sours on Sarah Palin

Kristol publicly predicted that John McCain would tap the then-largely-unknown Palin as his running mate in June 2008; he reportedly pushed the McCain campaign to select her after being dazzled by Palin during a 2007 lunch in Alaska. Kristol said in November 2008 that Palin "reminds me a lot of FDR."

But he has since soured on Palin, telling MSNBC in February that she hasn't taken advantage of her opportunities.

"I have a high regard for Sarah Palin, but I will say I've been disappointed since she resigned as governor," he said. "I thought she had a real chance to take the lead on a few policy issues, do a little more in terms of framing the policy agenda. I don't think she's done that. But she's a shrewd woman and I wouldn't underestimate her."

Kristol's most recent comments come as polls suggest that the polarizing former Alaska governor, who was once thought to be a strong contender for the Republican presidential nomination should she enter the race (she says she's considering it), is becoming less popular even among Republicans. A Washington Post-ABC News poll earlier this month found that Palin's favorability rating among Republicans and GOP-leaning independents had fallen from 88 percent in 2008 to 58 percent today. Thirty-seven percent hold an unfavorable view of her.

Another poll out this month, meanwhile, found that independents would vote for troubled actor Charlie Sheen over Palin.

So, we have Bill Kristol to thank for getting McCain to select her as VP nominee...