President Obama was referring to "scare tactics" employed by the Romney campaign in misleading ads when he told a crowd Friday that "voting is the best revenge," one of his aides told reporters Saturday en route to another Ohio event. 

Jen Psaki said the president was referring to the ad and comments by Romney that  Chrysler planned to move jobs from Ohio to China. 

The ad was "frightening workers in Ohio into thinking, falsely, that they’re not going to have a job," Psaki said. "And the message he was sending is if you don’t like the policies, if you don’t like the plan that Governor Romney is putting forward, if you think that’s a bad deal for the middle class, then you can go to the voting booth and cast your ballot. It’s nothing more complicated than that." 

Mitt Romney seized on the line Saturday, telling attendees at his New Hampshire rally to "vote for love of country" and not revenge. An ad followed.