Updated: November 10, 2012, 4:05 p.m. | Although an unprecedented amount was spent by outside groups in an effort to influence the 2012 campaign, the candidates with the most super PAC funding were defeated Tuesday. Here's a look at how much outside groups spent per vote in a few of the notable races. These numbers are only estimates, as vote totals remain in flux, as do filings with the Federal Election Commission. Presidential figures are as of May 1, 2012, senate race figures are as of the day after the state's primary. Click a group name to see detailed expenditure and contribution data at PACTrack.