Mitt got an important publicity boost from "Late Night" host Dave Letterman last night. It could make all the difference in today's Michigan primary.

Dave was discussing the latest "Late Show Insta-Poll" on the presidential campaign.

For instance, 74 percent of respondents said they were reluctant to vote for John Edwards because "He’s prettier than Hillary."
The biggest challenge facing the nation, the poll found, is not the economy or Iraq -- but "The Spear Sisters."

Finally, the Insta-poll asked: "Who is your favorite person named Mitt?"
Eighty-nine percent said "Mitt Jagger."