Investing in stocks has a lot in common with going to the polling station on the day of an election. Besides paying lobbyists untold sums of money, many of the nation's largest publicly traded corporations and their executives donate directly to political campaigns.

Take Altria Group, the proprietor of Marlboro cigarettes, as an example. Since 1990, it's spent nearly $30 million on political contributions, 73% of which have gone to Republican candidates. Or cable provider Comcast  which has tilted ever so slightly in favor of Democrats over the same time period.

With this in mind, I sat down to uncover the biggest corporate contributors behind the nation's leading politicians. Using data from the Center for Responsive Politics, the following presentation reveals the 10 corporations that most heavily bankrolled House Majority Leader Eric Cantor's most recent political campaign.

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