(CNN) President Donald Trump on Sunday reversed course, saying special counsel Robert Mueller should not testify before Congress just two days after telling reporters the attorney general should make that decision.

In a pair of tweets , Trump said the special counsel should not appear before the House Judiciary Committee and questioned why the Democratically-controlled committee would need Mueller's testimony after concluding his two-year investigation into allegations of collusion between Russian operatives and Trump associates during the 2016 presidential campaign and transition.

"Are they looking for a redo because they hated seeing the strong NO COLLUSION conclusion? There was no crime, except on the other side (incredibly not covered in the Report), and NO OBSTRUCTION," he wrote, adding, "No redos for the Dems!"

On Friday, however, the President -- when asked by reporters at the White House about Mueller potentially testifying -- said Attorney General William Barr should determine whether or not Mueller would provide congressional testimony, saying: "I don't know. That's up to our attorney general, who I think has done a fantastic job."

Trump's Sunday tweet came hours after House Judiciary member David Cicilline told "Fox News Sunday" that the committee has reached a "tentative date" of May 15 for Mueller to testify, though he later clarified that the date for Mueller's appearance had not yet been finalized.

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