"He is taking your money to finance his risky and unproven takeover of the healthcare system," Romney said this month in a speech in Chillicothe, Ohio.
Obama countered in his weekend address that the reform law has given seniors deeper discounts on prescription drugs and provided access to preventive services with no co-payment, calling them "reforms that won't touch your guaranteed Medicare benefits. Not by a single dime."
The Medicare cuts identified by the Romney campaign are accomplished by reducing payments to providers and Medicare Advantage insurers.
Obama also repeated his portrayal of a Medicare overhaul proposed by Romney's running mate, Paul Ryan (R-Wis.), as one that would "effectively end Medicare as we know it."
Ryan's proposal would offer Americans who turn 65 beginning in 2022 subsidies to buy coverage from a pool of private health plans. Ryan's most recent version of the plan would retain traditional fee-for-service Medicare coverage as an option.
Modern Healthcare will be in Tampa to cover the Republican National Convention Aug. 27-30 and in Charlotte, N.C., for the Democratic National Convention Sept. 4-7. Follow our convention coverage at modernhealthcare.com/2012election.
UPDATE: The Republican National Committee announced Saturday afternoon that the party would formally convene the convention Monday but delay its proceedings until the next day because of the approaching Tropical Storm Isaac.
Florida Gov. Rick Scott, a former Columbia/HCA executive, had been in the lineup to address the convention Monday evening. It was not immediately clear whether his appearance would be rescheduled.
The threat posed by Isaac also led the White House to postpone Vice President Joe Biden's plans for a campaign swing through Florida, including Tampa, during the Republican convention.