President Trump claimed Sunday that it is clear now that Democrats will never be happy with the nomination of Brett Kavanaugh to the Supreme Court, and only plan to obstruct it as long as they can.

In a tweet, the president said no matter what he does to appease Democrats concerned with allegations of sexual assault levied against Kavanaugh, "it will never be enough." Trump singled out the Democrats' latest gripe with scope of a supplemental FBI investigation he authorized after the Senate Judiciary Committee voted in favor of passing Kavanaugh on Friday.

"Wow! Just starting to hear the Democrats, who are only thinking Obstruct and Delay, are starting to put out the word that the “time” and “scope” of FBI looking into Judge Kavanaugh and witnesses is not enough. Hello! For them, it will never be enough — stay tuned and watch!" he said.

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Ever since Trump caved to pressure, including among GOP senators, to allow a short and "limited" FBI probe, Democrats have harped on the reported constraints of the inquiry they had requested for weeks. For instance, Sen. Mazie Hirono, D-Hawaii, said Sunday, “To limit the FBI as to the scope and who they’re going to question, … that’s not the kind of investigation that all of us are expecting the FBI to conduct."

Lashing out at an NBC News report Saturday that said the White House was limiting the scope of the reopened background check, President Trump tweeted, "I want them to interview whoever they deem appropriate, at their discretion."

However, a follow-up report from NBC News on Sunday said that tweet did nothing to change the limits imposed by the White House counsel’s office on the FBI inquiry and that a small list of people agents aim to question remains intact for now.