Rick Santorum didn't just defeat Mitt Romney in Louisiana's Republican presidential primary, he trounced him, beating the former governor by 22 points and winning 63 of Louisiana's 64 parishes. Romney is still the likely nominee, but for the frontrunner to still be losing primaries by 22 points in late March doesn't look good.
Aaron Blake, however, noticed the silver lining for the former governor.
Early exit polls Saturday night showed Romney losing by near-double digits overall. But it also showed him losing basically every demographic group in the state, with one notable exception: voters making more than $200,000 per year.
To help drive the point home, I put together a chart showing the results in Louisiana by income level. (Note: among those making between $30,000 and $50,000, Romney actually finished third, behind Newt Gingrich.)
As we've reported before, this is part of an interesting larger trend: Mitt Romney has one reliable constituency that makes up his true base: wealthy people.
