Now, thanks to campaign finance filings, it’s possible to put a price tag on just how much: Mitt Romney’s presidential campaign and the super PAC supporting it are outraising Obama among financial-sector donors $37.1 million to $4.8 million.

Near the front of the pack are 19 Obama donors from 2008 who are giving big to Romney.

The 19 have already given $4.8 million to Romney’s presidential campaign and the super PAC supporting it through the end of April, according to a POLITICO analysis of Federal Election Commission filings. Four years ago, they gave Obama $213,700.

None of them has given a penny to the president’s reelection campaign or the super PAC supporting it.

Ken Griffin, founder of the Chicago-based hedge fund Citadel, has accused Obama of engaging in “class warfare” and gave $2,500 to Romney’s campaign, plus nearly $1.1 million to the pro-Romney super PAC Restore Our Future. But in 2008, Griffin donated the maximum $4,600 to Obama’s campaign and helped raise another $50,000 to $100,000.