U.S. President Barack Obama has urged Congress to “do its job” and avoid letting the country default on its debts, after holding a short meeting with senior lawmakers Saturday at the White House.

The White House says Mr. Obama restated his opposition to a short-term extension of the national debt ceiling, because he said it could damage the nation's credit rating. He said Congress should stop playing what he called “reckless political games” with the economy.

The top Republicans in Congress, Senate Minority Leader Mitch McConnell and the speaker of the House of Representatives, John Boehner, responded by saying congressional leaders are committed to finding a bipartisan solution that will cut spending and prevent a default.

Boehner said lawmakers will seek a solution that will “preserve the full faith and credit of the United States.”

The president and lawmakers are expected to work in the coming hours toward a deal to prevent the government from defaulting on its debt. The U.S. must raise its $14.3 trillion debt ceiling by August 2, to allow the government to continue borrowing money to meet its obligations.

In addition to President Obama, McConnell and Boehner, the top Democrats in Congress, Senate Majority Leader Harry Reid and House Minority Leader Nancy Pelosi, also attended the meeting on Saturday. Vice President Joe Biden also attended the meeting.

Boehner walked out of talks with the president on Friday. He later said President Obama had demanded an unacceptable increase in tax revenue that would require raising taxes on the people needed to invest in the economy and create jobs. Boehner said he remains confident the U.S. can avoid defaulting on its payments.

The U.S. Treasury Department, the central bank and the White House have all warned a default would have catastrophic consequences on the economy. Economists have said a default would also have a very negative effect on the global economy.