Nancy Pelosi

According to Judicial Watch itself:

Beginning in 2009, after the media failed to follow up on concerns raised about Nancy Pelosi's use of luxury Air Force jets to travel between her congressional district and DC, Judicial Watch's Freedom of Information act requests exposed her abuse of this travel perk.  Judicial Watch uncovered that Pelosi's military travel cost the United States Air Force $2,100,744.59 over one two-year period – $101,429.14 of which was for in-flight expenses, including food and alcohol.

 ------------------------------------------------------------------------------------------------------------------------
Nancy Pelosi. House Minority Leader Pelosi's (D-San Francisco) minimum net worth dropped $16 million over the last year due to a new $5 million mortgage and an $11 million decrease in assets.