Sen. Mark S. Kirk waves to the dozens of members of Congress who lined the Capitol steps to watch him make his way to the chamber for the first time in nearly a year. The Illinois Republican, assisted by Democratic Sens. Joe Manchin III of West Virginia, left, and Richard J. Durbin of Illinois, has been in rehabilitation since suffering a stroke in January 2012.
On January 3, Sen. Kirsten Gillibrand, D-N.Y., raises her right hand as her son Henry messes up her hair while Vice President Joseph R. Biden Jr., delivers the ceremonial swearing-in in the Old Senate Chamber. Gillibrand's other son Theodore, lower right, looks on.
Each year since 1990, CQ Roll Call has reviewed the financial disclosures of all 541 senators, representatives and delegates to determine the 50 richest members of Congress. This year's report, derived from forms covering the calendar year 2012, shows it took a net worth of $6.67 million to crack the exclusive club.