Voters in three critical swing states broadly oppose the sweeping changes to Medicare proposed by Republican vice presidential candidate Paul Ryan. And, by big margins, those voters favor President Obama's proposals on the entitlement program over Mitt Romney's, according to new state polls by The Washington Post and the Kaiser Family Foundation.

Among senior citizens, the issue rivals the economy as a top voting issue, undercutting Romney’s appeal in Florida, Ohio and Virginia. Generally, the more voters focus on Medicare, the more likely they are to support the president’s bid for reelection.

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