Candidates who spend more usually win

http://www.politifact.com/truth-o-meter/statements/2011/oct/17/occupy-wall-street/occupy-wall-street-protesters-sign-says-94-percent/

The center found that in 2008, the biggest spenders won 93 percent of House races and 86 percent of Senate races. In 2006, the top spenders won 94 percent of House races and 73 percent of Senate races. And in 2004, 98 percent of House seats went to candidates who spent the most, as did 88 percent of Senate seats.