Will the persuadables actually show up and vote? History suggests yes.
In an AP-Yahoo study that interviewed the same people multiple times over the course of the 2008 presidential campaign, 38 percent of registered voters were persuadable in interviews conducted just ahead of that year's conventions. When that same group was interviewed on Election Day, three-fourths said they had voted.
When will the undecideds make up their minds?
In 2004 and 2008, about 10 percent of voters reported they didn't decide until the last week, according to exit polls.
Michelle Woodby, a 36-year-old Republican homemaker from Tecumseh, Mich., says she's been known to wait until the last minute.
With small kids to care for and little time to watch the news, Woodby says she hasn't fully tuned in yet.
So far, Romney's opposition to abortion has won her over, but Woodby says she's still got a lot of studying to do — and she shows a decided lack of enthusiasm for the job.
"I need to do my homework," she says, "which I dread."
Associated Press writer Josh Lederman and AP News Survey Specialist Dennis Junius contributed to this report.
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