Byron York

Bay Buchanan, the Republican activist who often speaks publicly on behalf of Mitt Romney, baffled a group of reporters recently when she threw out a statistic no one had heard before.

"Nearly 1 million women have become unemployed as a result of Barack Obama's policies," Buchanan said on a conference call arranged by the Romney campaign. "That's 92 percent of the jobs lost while Barack Obama has been president."

"You want to talk about the real war on women, you go right over and talk to the White House about what they've done to working women," Buchanan added. "They've set us back 20 years."

Reporters on the call seemed a little confused. "So 92 percent of jobs lost under Barack Obama were women?" asked one. "Could you repeat that?" asked another. "I'm sorry, where did that statistic come from?" asked a third. Buchanan explained that the number came from the Bureau of Labor Statistics, and a Romney staffer jumped in to offer documentation to anyone who wanted it.

A short time later, Mitt Romney himself, ever precise, used an even more specific figure out on the campaign trail. "This is an amazing statistic," he told a group of women business owners in Hartford, Conn. "Ninety-two-point-three percent of all the jobs lost during the Obama years have been lost by women. Ninety-two-point-three percent! ... The real war on women is being waged by the president's failed economic policies."

Supporters of the president immediately pushed back, and the fact-checking website PolitiFact declared the statistic "mostly false." But it is, in fact, true. Of the 740,000 nonfarm payroll jobs lost between January 2009, when Obama took office, and last month, 683,000 were jobs lost by women. The short explanation is that men in industries such as construction and manufacturing were the first to lose their jobs in the Great Recession, mostly in 2008. Jobs occupied largely by women were lost later, in 2009, after Obama took office and a lot of men were already out of work.

The 92.3 percent offensive was the result of some clever research by the Romney campaign, where some smart staffers are constantly digging through data -- not waiting for media reports -- to find themes that help illustrate Romney's positions. Relying on its own number crunching, the campaign responded quickly and aggressively to PolitiFact's objections with a sharp rebuttal from campaign policy chief Lanhee Chen.

Byron York

Byron York, chief political correspondent for The Washington Examiner