Some Republicans in Congress are getting an earful back home over their votes to dramatically revamp Medicare for seniors.

House Budget Committee Chairman Paul Ryan, R-Wis., who proposed changing the federal entitlement into a voucher program, got booed at such a meeting in his district last week.

Rep. Charlie Bass, R-N.H., who represents a district that voted for Democrats Barack Obama in the 2008 presidential contest and John Kerry in the 2004 race, was questioned about Medicare in his swing district. So was freshman Rep. Lou Barletta, R-Pa., who heard from Democrats such as Linda Christman at his town hall meetings.

"You said nothing in the campaign about 'I'm going to change Medicare.' Now you voted for a plan that will destroy Medicare," Christman said, according to the Los Angeles Times.

Barletta stuck by his vote: "I won't destroy Medicare. Medicare is going to be destroyed by itself."

For some, these town hall meetings are a reminder of the angry sessions on health care two summers ago before Congress passed a sweeping law requiring most Americans to carry insurance coverage.

Republicans such as Ryan say the 2012 budget plan they approved before Congress left Washington for a two-week break is aimed at cutting federal spending, reducing the deficit and ensuring programs such as Medicare are there for the next generation. (Ryan's Medicare program would make changes for those people who are currently under 55.)

"This budget keeps America exceptional and preserves its promise for the next generation," Ryan said April 15 during the House vote on his plan.

There's no question that Democrats are trying to tie Republicans to the Ryan plan with radio and TV ads, e-mails and robo-calls in key districts.

Americans United for Change has TV spots airing starting today in four congressional districts, including Ryan's, with a voice-over from a senior citizen that asks, "What were you thinking?"

"What are Republicans in Congress thinking, demanding that our most vulnerable citizens make more sacrifices and millions to make less?" said Tom McMahon, executive director of Americans United for Change. "If Republicans have their way, there would be no more guaranteed Medicare benefits for America's seniors, only a guarantee of paying more and more out-of-pocket for less care after being left to the mercy to the private insurance industry."

The Democratic Congressional Campaign Committee continues its focus on Medicare, with a Web video spotlighting GOP lawmakers such as Pennsylvania's Patrick Meehan and Florida's Steve Southerland who vowed during their campaigns to protect the entitlement program but voted for the Ryan plan. It's the latest in the DCCC's Drive to 25 effort.