Meet the top 10 richest members of Congress

The Hill newspaper released its annual report Tuesday on the wealth of members of Congress, revealing the richest lawmakers on Capitol Hill.

Republican Rep. Darrell Issa, who began building his fortune 30 years ago by founding the company that makes Viper car alarm systems, tops the list this year with an estimated net worth of $355.4 million. Issa's estimated net worth has more than doubled in the past year, according to the The Hill's 2012 list, in which he ranked third.

Although a Republican tops the new list, Democrats hold seven of the spots in the top 10.

Using financial disclosure forms for the 2012 calendar year, The Hill calculated each amount by subtracting each lawmaker's liabilities from assets. The congressional disclosure forms, however, only require lawmakers to provide ranges instead of exact numbers, so the amounts listed here are "conservative estimates" based on information provided.

You can find more information about where the lawmakers made their money by clicking on the links below.

Here are this year's top 10:

1. California Republican Rep. Darrell Issa

2. Texas Republican Rep. Michael McCaul

3. Virginia Democratic Sen. Mark Warner

4. West Virginia Democratic Sen. Jay Rockefeller

5. Connecticut Democratic Sen. Richard Blumenthal

6. Maryland Democratic Rep. John Delaney

7. Colorado Democratic Rep. Jared Polis

8. California Democratic Rep. Scott Peters

9. California Democratic Sen. Dianne Feinstein

10. Ohio Republican Rep. Jim Renacci