Mitt Romneycranks country tunes. (Gerald Herbert/AP)

Elsewhere, our colleague Aaron Blake reports that Congress is reaching new lows: A new poll out shows that Congress’ approval rating has tanked to a mere 10 percent. We love this slideshow of things more popular than Congress (polygamy! Paris Hilton!).

And our pals at the Reliable Source report that Roberta McCain, the irrepressable mother of Sen. John McCain, celebrated her 100th birthday in style. Guests at her party, held at the Capitol Hill club, included Sens. Joe Lieberman, Lindsay Graham, Jon Kyl and John Thune. And we get this fascinating tidbit: the Capitol Hill club—a popular GOP watering hole—was once the “McCain family’s D.C. residence,” the Reliable Sourcers report.