Mitt Romney is taking on what a top aide characterized as Barack Obama’s naïve and reckless foreign policy. The move is a shift in a campaign that has so far mostly focused on the economy and high unemployment, The Washington Post reported.

Advisers to the GOP frontrunner say the former Massachusetts governor plans to deliver a major foreign policy speech soon and take other steps to promote the foreign policy differences as Romney begins to focus on the general election.

“In the end, this president will lose because he failed on the economy — that’s the referendum,” Richard Williamson, a senior foreign policy adviser to the Romney campaign, told the Post. “But the same sort of naivete and fecklessness have been evident on the foreign policy side as well. And we welcome having that debate.”