WASHINGTON -- The Medicare program is about keeping promises to millions of seniors who have put in a lifetime of hard work, President Barack Obama said Saturday in his radio and Internet address and in a new campaign ad.

The president used his weekly address to discuss the surging campaign issue, saying his goal is to strengthen Medicare and preserve the program for future generations. He made no mention of Republican rival Mitt Romney in the address.

But the new 30-second television ad says Romney "would break that promise" and replace the current Medicare system with a voucher program that wouldn't keep up with costs.

"Insurance companies could just keep raising rates," the new ad says.

Under a plan proposed by Romney's running mate, Rep. Paul Ryan, starting in 2023 Medicare would be radically changed. New retirees would get a fixed amount of government money to pick either private health insurance or a federal plan modeled on Medicare. Ryan says that would keep the program solvent.

The Obama administration says the change could cost retirees as much as $6,400 a year.

Romney has accused Obama of cutting more than $700 billion from Medicare to pay for his health care law.

In the Republican's weekly address, Sen. Rand Paul of Kentucky said the nation is being hurt by "the looting of the Treasury and 20 years of deficit spending."

___

Online:

Also on HuffPost:

Here is a link to the ad--embedding disabled by request.
Loading Slideshow...
  • Birth Certificate -- "Born In The USA"

    <a href="http://www.huffingtonpost.com/2011/04/27/obama-birth-certificate-r_n_854248.html" target="_hplink"><strong>(April 27, 2011) --</strong></a> The White House <a href="http://www.whitehouse.gov/blog/2011/04/27/president-obamas-long-form-birth-certificate" target="_hplink">released</a> President Barack Obama's "long form" birth certificate, adding documentation to a longstanding discussion over his ability to serve as commander in chief. "We do not have time for this kind of silliness," Obama said. "We have better stuff to do. I have got better stuff to do. We have got big problems to solve." (JEWEL SAMAD/AFP/Getty Images)

  • Osama Bin Laden Killed -- "Tonight, Tonight"

    <a href="http://www.huffingtonpost.com/2011/05/01/osama-bin-laden-dead-killed_n_856091.html" target="_hplink"><strong>(May 1, 2011)</strong></a> -- In a televised address to the nation, Obama announces that Osama bin Laden is dead. His death was the result of a U.S. operation launched today in Abbottabad, Pakistan, against a compound where bin Laden was believed to be hiding. "[T]oday's achievement is a testament to the greatness of our country and the determination of the American people," Obama proclaimed. (Photo by Pete Souza/The White House via Getty Images)

  • Debt Ceiling Deal -- "Gold On The Ceiling"

    <a href="http://www.huffingtonpost.com/2011/08/02/obama-debt-ceiling-deal-jobs_n_916285.html" target="_hplink"><strong>(Aug. 2, 2011) --</strong></a> After the Senate passed a bill to raise the debt limit, Obama pleaded with Congress to shift their attention to jobs. "I will urge them to immediately take some steps -- bipartisan, common-sense steps -- that will make a difference; that will create a climate where businesses can hire, where folks have more money in their pockets to spend, where people who are out of work can find good jobs," he said. (Photo by Brendan Smialowski/Getty Images)

  • Don't Ask Don't Tell -- "Don't Stop Believin'"

    <a href="http://www.huffingtonpost.com/2011/09/20/barack-obama-dont-ask-dont-tell-repeal-statement_n_971662.html" target="_hplink"><strong>(Sept. 20, 2011) --</strong></a> As the ban on gays serving in the military came to an end, Obama hailed the fresh start, celebrating the fact that "patriotic Americans in uniform will no longer have to lie about who they are in order to serve the country they love." (Photo by Brendan Hoffman/Getty Images)

  • Iraq War To End -- "Homeward Bound"

    <a href="http://www.huffingtonpost.com/2011/10/21/obama-iraq-troop-withdrawal_n_1024108.html" target="_hplink"><strong>(Oct. 21, 2011) --</strong></a> Obama announced that all U.S. troops will be out of Iraq by 2011, fulfilling a promise that dated back to his campaign. "As a candidate for president, I pledged to bring the war in Iraq to a responsible end," Obama said. "So today I can report that, as promised, the rest of our troops in Iraq will come home by the end of the year." (Photo credit should read JIM WATSON/AFP/Getty Images)

  • Singing Al Green's "Let's Stay Together"

    <a href="http://www.huffingtonpost.com/2012/01/20/obama-al-green-apollo-theater_n_1218070.html" target="_hplink"><strong>(Jan. 20, 2012) --</strong></a> During a fundraiser at Harlem's historic Apollo Theater, Obama delivered a memorable musical message to his donors. With Rev. Al Green in attendance, Obama sang part of Green's hit song "Let's Stay Together," drawing strong applause from the crowd.

  • Singing Robert Johnson's "Sweet Home Chicago"

    <a href="http://www.huffingtonpost.com/2012/02/21/obama-sings-sweet-home-chicago_n_1292576.html" target="_hplink"><strong>(Feb. 21, 2012) --</strong></a> Days after his Al Green rendition, Obama flexed his vocal chords again with a hometown favorite. The East Room of the White House had its blues fix filled when the president started swinging "Sweet Home Chicago."

  • Gay Marriage -- "Can't Fight This Feeling"

    <a href="http://www.huffingtonpost.com/2012/05/09/obama-gay-marriage_n_1503245.html" target="_hplink"><strong>(May 9, 2012) --</strong></a> In a sit-down interview with ABC's Robin Roberts, Obama explained his evolution on the issue, affirming his support for gay marriage. "[A]t a certain point I've just concluded that for me personally it is important for me to go ahead and affirm that I think same sex couples should be able to get married," he said.

  • Immigration -- "With Arms Wide Open"

    <a href="http://www.huffingtonpost.com/2012/06/15/obama-immigration-order-deportation-dream-act_n_1599658.html " target="_hplink"><strong>(June 15, 2012) --</strong></a> The Obama administration addressed America's immigration issue, announcing that it will halt deportations and grant work permits to young individuals eligible for Dream-Act benefits. "They pledge allegiance to our flag," Obama said. "They are Americans in their hearts, in their minds, in every single way but one: on paper."(Photo by Alex Wong/Getty Images)

  • Health Care Reform -- "Beautiful Day"

    <a href="http://www.huffingtonpost.com/2012/06/28/supreme-court-health-care-decision_n_1585131.html" target="_hplink"><strong>(June 28, 2012) --</strong></a> After weeks of speculation that Obama's signature piece of legislation could be overturned, the Supreme Court ruled that the Affordable Care Act's individual mandate is constitutional. "It should be pretty clear that I didn't do this because it's good politics," <a href="http://www.huffingtonpost.com/2012/06/28/obama-health-care-ruling_n_1632953.html" target="_hplink">Obama said</a>. "I did it because it's good for the country." (Photo by Alex Wong/Getty Images)