(CNN) - Warren Buffett on Monday hit back against Republican Gov. Chris Christie of New Jersey for saying the billionaire investor should "just write a check and shut up" about taxes.
"It's sort of a touching response to a $1.2 trillion deficit, isn't it, that somehow the American people will just all send in checks and take care of it," Buffett said on CNBC.
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Buffett has played a prominent role in the tax debate in the last year, arguing that wealthy individuals like him pay too little in taxes.
He lent his name to a White House principle, the so-called "Buffett rule," which calls for those making more than $1 million to pay a tax rate closer to that of middle-class Americans.
President Barack Obama has even specified that he wants the rich to pay at least 30% of their income in taxes as part of a deficit reduction effort.
Last week, Christie said he was "tired of hearing about" Buffett in the national debt debate, adding that if the investor wants to make a difference, then he should donate his own money towards solving the problem.
"He should just write a check and shut up. Really, and just contribute," Christie said on CNN's "Piers Morgan Tonight." "If he wants to give the government more money, he's got the ability to write a check – go ahead and write it."
Christie was echoing a similar suggestion last year made by Senate Minority Leader Mitch McConnell, who supported a measure in October that would allow wealthy individuals to voluntarily pay more than they owe in taxes.
In January, Buffett responded by saying he would match any contribution made by a Republican member of Congress to the Treasury to pay down debt and would triple the match for any donation by McConnell.
"It's sort of astounding to me that somebody that has the responsibility for being the minority leader in the Senate would think that you attack a $1.2 trillion or so deficit by asking for voluntary contributions," Buffett said on Monday.
He added: "The real problem we have is we're taking in too little money and we're spending too much and that's not going to be solved by voluntary contributions. What we need is a policy, a tax policy."
– CNN's Charles Riley contributed to this report.