House members and those newly elected to the Legislature gather in the House chamber at the Arkansas state Capitol in Little Rock, Ark. Nov. 7, 2014. Arkansas' legislature is just one of 31 state legislatures in Republican control.
The amount of money spent on Capitol Hill is way more than small change — but the impact of that money is a little murky. Here, the U.S. Capitol is reflected in a fountain full of coins on Election Day this year.
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Republican U.S. Senate candidate Dan Sullivan greets supporters on election night in Anchorage. The as-yet-undecided race between Sullivan and Democratic incumbent Sen. Mark Begich was the hottest in the state.
Ted S. Warren/AP
Sheldon Adelson and his wife, Miriam, gave $92.8 million to conservative superPACs and related groups in the 2012 election, according to the Center for Responsive Politics.
People stand with signs on Capitol Hill as Senate and House Democrats called for an amendment to the Constitution aimed at curbing special interests' financial clout in elections.
J. Scott Applewhite/AP