(CNN) - Presumptive GOP presidential nominee Mitt Romney said Tuesday he would not call off the dogs in what's become a war of heckling on the campaign trail between his team and that of President Barack Obama.
Asked in a radio interview if he would condemn the practice, the former Massachusetts governor said "it would be a nice thing" for it to end but argued Obama's supporters would also have to stand down.
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"I could assure you that we do not believe in unilateral disarmament," Romney said on Fox News Radio.
During the last few days of Romney's six-state bus tour, the Democratic National Committee and other groups supportive of the president have followed the bus path and held protests at many of the Romney stops.
Their tactics came after Romney's team showed up at an Obama speech in Ohio last week and caused a stir by circling the venue and honking. Two weeks earlier, Romney took credit for supporters and members of his staff showing up at an Obama event to make noise and drown out speakers critical of Romney's record as former governor.
On Sunday, Obama adviser David Axelrod took to Twitter to condemn heckling by Obama supporters during Romney's bus tour.
"Shouting folks down is their tactic, not ours," Axelrod wrote. "Let voters hear BOTH candidates & decide."
The re-election campaign echoed those sentiments in a statement Tuesday and blasted Romney for declining to take a strong stance against heckling.
"We have sent a strong message to our supporters that this campaign should be an open exchange of ideas, not one where we drown out the other side by heckling and crashing events," Obama press secretary Ben LaBolt said.
Romney, however, said he was less sure both sides could actually come to that agreement.
"I know America has a long history of heckling and free speech," Romney said jokingly in Tuesday's interview. "It would be very nice if we could reach that kind of conclusion. I'm not sure it's possible for us."