President Trump Donald John TrumpOmar fires back at Trump over rally remarks: 'This is my country' Pelosi: Trump hurrying to fill SCOTUS seat so he can repeal ObamaCare Trump mocks Biden appearance, mask use ahead of first debate MORE predicted Thursday that Sen. Marco Rubio Marco Antonio RubioOvernight Defense: Pentagon redirects pandemic funding to defense contractors | US planning for full Afghanistan withdrawal by May | Anti-Trump GOP group puts ads in military papers Democrats step up hardball tactics as Supreme Court fight heats up Press: Notorious RBG vs Notorious GOP MORE (R-Fla.) will ultimately vote for the Republican tax plan.

"I think that Sen. Rubio will be there for sure," Trump told reporters at the White House after a speech on deregulation.

The president called "a great guy" who has been "very supportive" of his agenda.

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Trump spoke minutes after Rubio threatened to vote against the tax bill, which endangered its chances of passing before Christmas.

Rubio has told Senate leaders he will vote against the bill unless the child tax credit is made more generous to help low-income workers who pay payroll taxes and not regular income taxes.

Trump expressed confidence the issue would not derail the timing of the Senate vote, which is expected to take place next week.

“It’ll be the greatest Christmas present that many people have ever received. It’ll be something special," he said.