Spending on winning Senate races has increased 62 % in 2012 dollars since 1986 . The increase is more pronounced in the House , where winning a race there increased by 334 % . Comment:
Spending on winning Senate races has increased 62 % in 2012 dollars since 1986 . The increase is more pronounced in the House , where winning a race there increased by 334 % . Biggest increase is in outside groups , which went from $ 9 miilion in 1986 to $ 457 million in 2012 .