Speaking on "Fox News Sunday," White House adviser David Plouffe acknowledged that the Obama administration order is not a "permanent fix." But he also alleged that voters will not be able to "trust" Romney when it comes to fixing the immigration system. 

"I think that's a clear choice just not for the Latino community, but for the American electorate at large," Plouffe said. 

Romney, though, accused the president of having "saved" the policy change for an election year, suggesting it was a sop to Hispanic voters. "If he felt seriously about this, he should have taken action when he had a Democrat House and Senate," Romney said. 

Romney is in a tough spot on the immigration policy change. 

His positions on immigration during the GOP primary battle were among the most conservative in the field. But Hispanics remain a critical voting bloc going into November. And while