Former US President Donald Trump called on the leader of the Republican Party in the Senate, Mitch McConnell, to stand up against the Democratic Party's efforts to raise the public debt ceiling.

In a statement, Trump described his former ally McConnell as "a fool" and told him that "he damn well better stop their 'Dream of Communism Bill' and keep his Senators in line, or he should resign now, something he should have done a long time ago."

McConnell and 18 other Senate Republicans voted in favor of President Joe Biden's $1 trillion infrastructure package.

Last week, Trump also called McConnell an "old crow" for voting in favor of Biden's bill and accused him of "jeopardizing" the chances of the 18 other senators of winning the next elections.

He pledged that "any Republican in the House or Senate who votes for this bill will never get a Trump endorsement."

In turn, McConnell did not respond to Trump's criticism and reiterated his support for the infrastructure bill.

"I'm proud of my vote, and members are obviously free to choose how they wanted to vote. And in the Senate, 19 Senate Republicans felt it was the right thing to do for the country," he pointed out.