Campaign finance in the United States is the financing of electoral campaigns at the federal, state, and local levels by contributions from individuals, corporations, political action committees, and sometimes the government. Campaign spending has risen steadily at least since 1990 (for example the average campaign spending for a candidate who won an election to the House of Representatives in 1990 spent $407,600, while the average winner thirty years later spent $2.35 million; in the Senate, average spending for wining candidates went from $3.87 to $27.16 million).