The new line of attack from Newsom, who is widely considered a top contender for president in 2028, comes after he told Fox LA earlier this week that Trump “is not the same person that I dealt with just four years ago, and he’s incapable now of even a train of thought. He’s making things up.”

California Gov. Gavin Newsom has embraced a new attack line in his ongoing showdown with Donald Trump: The president — who turns 79 on Saturday — is slipping. "He is not the same person that I dealt with just four years ago,

The public fight between California Gov. Gavin Newsom and President Donald Trump keeps intensifying, with name calling, insults and accusations traded over television and social media networks.

California Republicans have found ways to convince Trump he’s helping the state rather than Newsom before, one expert said.

Democratic politicians have spent the last few months talking about standing up to President Donald Trump in his second term. California Gov. Gavin Newsom is among the first faced with figuring out what standing up actually looks like.