Obama campaign official donated $10G to Paul Ryan PAC

Aug. 31: Salesforce CEO Marc Benioff speaks at an event in San Francisco, Calif. (Reuters)

An Obama campaign co-chairman who's helped the president's re-election team raise hundreds of thousands of dollars has a political interest on the side -- Paul Ryan.

Marc Benioff, the CEO of Salesforce.com, contributed $10,000 to the Republican running mate's political action committee in June, federal records show.

The bipartisan approach to political donations isn't anything new for Benioff. Over the years, he's given to both the Democratic and Republican national committees, as well as the George W. Bush presidential campaign and several Democratic and Republican lawmakers.

But the contribution to Ryan, who was picked nearly two weeks ago as Mitt Romney's running mate, is striking, considering the prominent role Benioff has assumed for team Obama.

Aside from being a campaign co-chairman, he's also a prolific "bundler" -- somebody who raises lots of money from other donors and then gives that money to the campaign. According to the Center for Responsive Politics, Benioff has raised more than $600,000 for the campaign.

He also hosted a $35,800-a-person fundraiser for Obama at his San Francisco home last year.

Benioff declined a request for an interview with FoxNews.com.