BOSTON - Continuing to capitalize on a Washington Post report on Mitt Romney's ties to outsourcing, the Obama campaign is launching state-specific TV ads in Ohio, Iowa and Virginia that accuse the presumptive Republican nominee of a history of shipping U.S. jobs overseas.

The 30-second spots also each directly respond to claims made in Romney's "First 100 Days" TV ad that's been airing in the same states, which are hotly-contested battlegrounds ahead of the November election.

The Ohio ad focuses on Romney's assertion that a "President Romney stands up to China;" the Iowa ad hits his claim that residents would experience "fewer worries;" and the Virginia spot attacks Romney's promise of "thousands of new jobs for Virginians."

"The Washington Post has just revealed that Romney's companies were pioneers in shipping U.S. jobs overseas, investing in firms that specialized in relocating jobs done by American workers to new facilities in low-wage countries like China and India," the narrator says in each of the Obama ads.

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"Does Iowa really want an outsourcer-in-chief in the White House?" one questions at the close - a closing line tailored to each state.

Obama campaign officials believe the outsourcing attack on Romney, which the president has himself been pushing on the stump, is gaining momentum nationwide and resonating in key communities in battleground states. The state-specific ads are part of "significant buys in key markets," one official said, indicating they would run multiple times.

The Romney campaign has rebuffed the outsourcing attacks as a distortion of the former Bain Capital executive's record and a diversion from President Obama's handling of the economy.

"President Obama has the worst record on jobs and the economy of any president in modern history, which is why he is running a campaign based on distractions, not solutions," Romney spokeswoman Amanda Henneberg said in a statement.

The ad release Tuesday comes as Mitt Romney campaigns in Virginia and Vice President Joe Biden kicks off a bus tour through Iowa.