Treasury Secretary Steven Mnuchin Steven Terner MnuchinLawmakers fear voter backlash over failure to reach COVID-19 relief deal United Airlines, unions call for six-month extension of government aid House Democrats plan to unveil bill next week to avert shutdown MORE on Wednesday said that there's a desire to spend what is needed to combat the coronavirus crisis, though he also said he was sensitive about adding to the national debt.

"I think we're all sensitive to that this is a war and we need to win this war and we need to spend what it takes to win the war," Mnuchin said in an interview on Fox Business Network. "On the other hand, I think we are sensitive to the economic impacts of putting on debt, and that's something that the president is reviewing with us very carefully."

Mnuchin's comments come after Senate Majority Leader Mitch McConnell Addison (Mitch) Mitchell McConnellOcasio-Cortez to voters: Tell McConnell 'he is playing with fire' with Ginsburg's seat McConnell locks down key GOP votes in Supreme Court fight Video shows NYC subway station renamed after Ruth Bader Ginsburg MORE (R-Ky.) on Tuesday signaled resistance to quickly moving on an additional coronavirus relief bill, saying that lawmakers need to start thinking about the debt. The Senate passed a $484 billion relief measure on Tuesday, and President Trump Donald John TrumpBiden leads Trump by 36 points nationally among Latinos: poll Trump dismisses climate change role in fires, says Newsom needs to manage forest better Jimmy Kimmel hits Trump for rallies while hosting Emmy Awards MORE has already enacted three other bills.

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The Committee for a Responsible Federal Budget has projected that debt held by the public will exceed the size of the economy by the end of the fiscal year.

Mnuchin noted that interest rates are currently low.

"The good news is interest rates are very low, so the cost of carrying the debt to the American taxpayer is quite low," he said.