TAMPA, Fla. — Mitt Romney’s campaign says President Obama’s campaign has gone “off the rails” by attacking Romney here at the site of the Republican National Convention this week.

“Today, with the Republican National Convention underway, President Obama’s campaign is going off the rails with reprehensible attacks and reckless charges against Gov. Romney,” Romney senior adviser Danny Diaz said in an email to reporters. “With a growing number of Americans, including nearly three in 10 Democrats, believing President Obama has no plan to create jobs, it’s clear his campaign cannot defend the president’s abysmal record of lost jobs, higher poverty rates and middle-class suffering.”

Obama’s campaign and the Democratic National Committee held several events so far in Tampa, including a press conference Tuesday morning with Obama campaign adviser Robert Gibbs and Maryland Gov. Martin O’Malley.