Despite the attacks, a poll released Wednesday by the Marquette University Law School showed Walker slightly ahead of Barrett 50-44, with a 4.1 percentage point margin of error.
"I'm not afraid to lose," Walker said. "I plan to win, I'm running to win, but I'm not afraid to lose to do the right thing."
And if he does lose?
"I'll figure it out starting June 6," Walker said.
Associated Press writer Dinesh Ramde contributed to this report from Milwaukee.
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