The president spoke to reporters before heading to Mar-a-Lago, where he'll be spending Thanksgiving.
Later on in the conversation, after MSNC political analyst Elise Jordan said it seemed to be an odd political calculation of Trump's to back Moore when Democrat Doug Jones seems to have all the momentum, Heilemann claimed that "Trump sees himself in Roy Moore", adding that the cries of "fake news" appeal to him.
Several allegations of sexual misconduct surfaced during the 2016 presidential campaign against Trump, who has denied them.
"He denies it. Look, he denies it", Trump said of Moore.
President Trump said he will announce next week whether he will campaign on Mr Moore's behalf.
That's a huge break from where McConnell and the rest of the Republican establishment are on the Moore issue - and where they hoped Trump would be. Luther Strange (R-AL). Bannon endorsed and campaigned for Moore, who ended up thumping Strange.
But it has also said it is up to the people of Alabama to make the choice for the Senate and it has not called on Moore to exit the race, as have many other leading Republicans.
But what he said is only likely to add to his party's growing problems in the race. Shelby, a Republican, said he will "absolutely not" vote for Moore.
Trump's comments are likely to complicate an already knotty situation for Republicans.
In her first televised interview since the Post detailed her allegations, Leigh Corfman told NBC's "Today" show on Monday that Moore "basically laid out some blankets on the floor of his living room and proceeded to seduce me, I guess you would say" on her second visit to his home when she was 14 and he was 32.
But clearly he just doesn't believe them.
Asked whether that meant Republicans should vote for Moore, Conway responded: "I'm telling you that we want the votes in the Senate to get this tax bill through".
"Judge Moore's going to win", Young said.
"He was afraid to go against Roy Moore because he thought he would lose again", Heilemann said.
Still, Sanders and other White House officials have highlighted the fact that Trump has not campaigned with Moore. And Trump's appeal to tribalism - any Republican is better than any Democrat exclusively by dint of being a Republican - will further worsen what is already the deepest polarization in Congress and the country in modern American history.