WASHINGTON (AP) -- In Mitt Romney's world, Europeans are socialists, the Chinese are currency manipulators, Russia can't be trusted to abide by nuclear agreements, and the U.S. is too generous with humanitarian aid.

The tough talk about allies as well as foes drives home Romney's view that President Barack Obama is an apologist for America, soft on its enemies and too forgiving of its friends. It's a message that might resonate with Republican voters, who tend to be wary of the rest of the world.

But it also raises questions about whether the rhetoric could damage U.S. relations abroad in the event that Romney wins the White House.

A key Romney foreign policy adviser, former Ambassador Richard Williamson, discounts any potential problems, saying other governments understand the rough-and-tumble of U.S. politics.