Protests are taking place in several Northern California cities as part of the "No Kings" movement on Saturday.
The rallies, similar to the ones in June , are to protest against President Trump, his administration and policies, organizers say.
"I hear very few people are going to be there, by the way," Mr. Trump said, in response to the protests. "But they have their day coming up, and they want to have their day in the sun."
Back in June, Mr. Trump also commented on the protests.
"I don't feel like a king. I have to go through hell to get stuff approved," said Mr. Trump. "A king would say, 'I'm not going to get this ... he wouldn't have to call up [House Speaker] Mike Johnson and [Senate Majority Leader John] Thune and say, 'Fellas, you've got to pull this off' and after year