Today is the first day of the new republican controlled House of Representatives. Officially, along with the Senate, they're known as the 112th Congress. The members will be sworn in this afternoon.
The Washington Post blog "The Fix" has a list of 10 members of Congress to watch. Republican Dave Camp, of Michigan's 4th district, is listed as one of the ten:
Camp may be the most powerful member of Congress you've never heard of. He's the chairman of the mighty Ways and Means Committee and, though low profile, will have considerable sway over health care, taxes and trade. That's a wide -- and important -- palette.
The Ways and Means Committee has jurisdiction over revenue for the U.S. government (taxes) and "other related issues" - things like unemployment benefits, tariffs, trade agreements, Social Security, and Medicare.