OCCUPATION: Republican whip, U.S. House of Representatives
PREVIOUS APPEARANCES ON THE TIME 100: 0
PRO: During the bank meltdown, he emerged as one of the Democrats' most vocal critics and became one of the GOP's few breakout stars. Now he's taking the lead on the Republican housing plan.
CON: For a guy who enjoys accusing others of partisanship, he hasn't done much reaching across the aisle.