(CNN) - President Barack Obama on Tuesday chastised Mitt Romney and his presidential campaign while in Mexico at a conference of world leaders.
"I would point out that we have one president at a time and one administration at a time and I think traditionally the notion has been that America's political differences end at the water's edge," he told reporters at the G-20 conference in Los Cabos, Mexico.
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He made the comments in response to an op-ed written by a senior economic adviser to Romney's campaign that was published earlier this month in a German newspaper. Obama and other members of the G-20 gathered to discuss ways to boost the worldwide economic recovery, with particular focus on troubles in the eurozone.
"I think sometimes back home there's a desire to superimpose whatever ideological arguments are taking place at home onto a very complicated situation in Europe," Obama said.
Obama suggested the Romney adviser, Glen Hubbard, had waded too far out from the heated political battles of the 2012 campaign.
Hubbard wrote earlier this month that "the advice of the U.S. government regarding solutions to the crisis is misleading, for Europe and especially for Germany."
At the time, Obama's campaign responded with a statement saying the Romney campaign "attempted to undermine America's foreign policy."
During Tuesday's press conference, Obama affirmed his position in the austerity versus growth debate, and referenced the jobs legislation he sent to Congress last September.
"I think that there's no doubt that all the countries in Europe at this point recognize the need for growth strategies inside of Europe that are consistent with fiscal consolidation plans," he said. "And by the way, that's exactly what I think the United States should be thinking about.
"The essence of the plan that I presented back in September is how do we increase growth and jobs now while providing clarity in terms of how we reduce our debt medium- and long-term," he continued, "and I think that's the right recipe generally, not just for us, but across the board."
Foreign policy is often seen as a weakness for many who seek the presidency as a non-incumbent. To bolster their foreign policy chops, some travel and meet with world leaders. While campaigning for the presidency in 2008, Obama gave a high-profile speech in Berlin.
– CNN's Steve Brusk contributed to this report