The Hill's 2011 50 Wealthiest in Congress

Nelson saw little change in his minimum net worth in 2010, only dropping about $100,000 in wealth.

Up for reelection in 2012, the centrist Democratic senator is one of the richest lawmakers on Capitol Hill due to investment and rental properties in Chicago and in several cities in Nebraska and Washington. Nelson and his spouse, Diane, are also very familiar with the “oracle from Omaha” — Warren Buffett — and the senator has at least $500,000 in stock in Buffett’s Berkshire Hathaway. Nelson’s wife owns more than $1 million in Berkshire stock.

The former Nebraska governor was debt-free in 2010.

—Kevin Bogardus

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