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BOSTON — After a week in which Democrats repeatedly attacked his economic plan as beneficial to the rich and devastating to the poor, Republican nominee Mitt Romney insisted Sunday that his tax and budget proposals would help rebuild the middle class in America.
During a series of lengthy talk show interviews, Romney and his running mate, Paul D. Ryan, declined to go into detail on how they would pay for across-the-board tax cuts while balancing the budget over two terms in office.
President Obama's campaign pounced on the lack of specificity, arguing that Romney might do away with popular aspects of the tax code such as the mortgage interest deduction. Obama contended during a taped appearance on CBS that his rival's call for spending cuts without a plan to create higher revenue wasn't mathematically possible.
The back-and-forth over the budget — and, later, Medicare, on the second day of a Florida bus trip by Obama — came after two weeks dominated by the parties' national conventions. New polling shows Obama has opened up a slight advantage over Romney, but both sides are looking toward October's debates as the next opportunity to break open the race.
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The focus on Romney's budget was prompted by an appearance on NBC's "Meet the Press," where he insisted that he would cut taxes for middle-income Americans but not for the rich. Host David Gregory pressed Romney for just one example of a tax loophole employed by the wealthy that he would close, but Romney would not offer one.
"High-income taxpayers are going to have fewer deductions and exemptions. Those numbers are going to come down. Otherwise they'd get a tax break," Romney replied. "I want to make sure people understand, despite what the Democrats said at their convention, I am not reducing taxes on high-income taxpayers."
In the same interview, Romney repeated his pledge to repeal the president's healthcare law but stressed that he would preserve one of its most popular provisions: that Americans with preexisting conditions can get coverage. Romney did not explain that his plan would cover those with preexisting conditions only if they had already had uninterrupted insurance coverage.
"I'm not getting rid of all of healthcare reform," Romney said. "There are a number of things that I like in healthcare reform that I'm going to put in place. One is to make sure that those with preexisting conditions can get coverage. Two is to assure that the marketplace allows for individuals to have policies that cover their family up to whatever age they might like. I also want individuals to be able to buy insurance, health insurance, on their own as opposed to only being able to get it on a tax advantage basis through their company."
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Ryan was questioned on the budget plan during an interview on "This Week" with George Stephanopoulos, after the ABC host played a clip of former President Clinton saying the Romney-Ryan tax plan would eliminate deductions for middle-class families. Stephanopoulos asked how the Republican plan would stay revenue neutral without eliminating those deductions.
"Those claims have been pretty discredited," Ryan said. "There have been five different studies that show — that this plan works.... We think the secret to economic growth is [to] lower tax rates for families and successful small businesses by plugging loopholes."
Stephanopoulos sought examples, asking how voters could accept the plan if they didn't know how it would work. Ryan replied that the Romney campaign wanted to give Congress a chance to debate the details.
"We want to have this debate in the public," Ryan said.
For his part, Obama's response played off Clinton's lancing destruction of Romney at last week's Democratic convention.
"Gov. Romney said he wouldn't take a deal with $10 of spending cuts for $1 of revenue increases. And the problem is the math — or the arithmetic, as President Clinton said — doesn't add up," Obama said in an interview on CBS' "Face the Nation."
Later, during his Sunday bus tour through critical precincts of central and southern Florida, where seniors are a huge portion of the vote, Obama emphasized Romney's plan to change government healthcare for senior citizens.
Romney has said he would try to restore Medicare to solvency by creating an array of options for seniors starting in 10 years. His plan would try to contain Medicare costs by creating a "premium support system" in which seniors would get fixed-amount payments that they could use to purchase insurance. They could also stay in the traditional Medicare program, though Romney has been vague about whether they would have the same benefits as current seniors.
On Sunday, Obama called that plan a voucher program that would shift rising healthcare costs onto seniors.