From The White House press briefing for December 5, 2017:
Q So two quick things. One, does the President believe, as the lawyer from the solicitor general's office said at the court today, that a baker could put a sign in his window saying "We don't bake cakes for gay weddings" and that that would be legal?
MS. SANDERS: I'm sorry, could you say the first part of that question again? My cough kind of drowned you out.
Q Yeah, so the solicitor general -- the lawyer from the solicitor general's office for the administration said today in court, at the Supreme Court, that it would be legal, it would be possible for a baker to put a sign in his window saying, "We don't bake cakes for gay weddings." Does the President agree that that would be okay?
MS. SANDERS: The President certainly supports religious liberty. And that's something that he talked about during the campaign and since upheld since taking office.
Q And that would be, that would --
MS. SANDERS: I believe that would include that.