WASHINGTON (AP) — Republican presidential candidate Mitt Romney says he's running on his budget proposals, not the more controversial plan authored by his running mate.

Romney is pushing back against Democrats who say that by picking Rep. Paul Ryan as his vice presidential candidate, he is embracing the Wisconsin congressman's austere budget. Ryan's long-term budget calls for more than $5 trillion in spending cuts, including an overhaul of Medicare.

Romney has proposed broad but largely unspecified cuts in federal spending. Romney's Medicare plans call for providing "generous" but undetermined subsidies to help future retirees buy private insurance, or let them have the option of traditional Medicare.

Romney and Ryan spoke in an interview on CBS' "60 Minutes."