United, we sit. Divided, we caucus.

Ever since Colorado Sen. Mark Udall (D) launched his "movement" to integrate Republicans and Democrats at the usually divided State of the Union address, more than 50 senators and representatives have signed on for the sit-in. Sen. Pat Leahy's office has promised that the Democratic senator from Vermont will be saving seats for his Republican pals. Sens. Mary Landrieu (D-La.) and Olympia Snowe (R-Maine) have declared themselves seat buddies: "Although Olympia and I are members of different political parties, we are first and foremost Americans," Landrieu said in a statement. ¶ Common ground is right before your eyes, Congress. ¶ Having a hard time finding a bipartisan perch in Tuesday's game of musical chairs? Here's a guide to some caucuses you may already belong to.

Timeout Corner

Prone to outbursts? Sit down and hush.

l Rep. Joe "You lie" Wilson (R-S.C.)

l Rep. Steve "Big lie" Cohen (D-Tenn.)

l Rep. Randy "Baby killer" Neugebauer (R-Tex.)

Mah-jongg Alley

Recently declared retirees: Please check in at the hobby corner.

l Sen. Joe Lieberman (I-Conn.)

l Sen. Kay Bailey Hutchison (R-Tex.)

l Sen. Kent Conrad (D-N.D.)

Endangered Preserve

Enjoy your seats. But don't get too comfy.