Rick Perry's embarrassing brain freeze in last week's Republican presidential debate in Michigan is coming back to haunt him in the polls.
A new NBC/Wall Street Journal survey finds that Perry's support has fallen to 4 percent among national GOP primary voters—a four point drop since last week.
By comparison, Herman Cain's support dropped just 1 point—from 28 percent to 27 percent—as he fended off allegations he sexually harassed four women while he was head of the National Restaurant Association in the 1990s.
Mitt Romney and Newt Gingrich appeared to benefit most from Perry's stumble. According to the NBC/WSJ survey, Romney's support jumped 5 points to 32 percent, while Gingrich's support went from 17 percent to 22 percent in a week.
While Perry may be struggling in the polls, he's turned to what could be his biggest strength in the GOP primary in hopes of regaining momentum: money.
Perry, who ended the third-quarter fundraising period with $15 million in the bank, has invested hundreds of thousands of dollars in recent weeks in ads in key primary states like Iowa, New Hampshire and South Carolina. On Friday, Perry made his biggest TV investment yet: a $1 million national ad buy on Fox News.
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