Newsom's jabs at Trump's age are part of a barrage of criticisms he's tossed at Trump in the past week. He's called Trump a threat to democracy who is putting the U.S. on a road to authoritarianism.

Newsom defended Biden’s mental fitness in office, now says Trump is in decline.

Step inside one of New York’s most luxurious gilded-age mansions on Fifth Avenue and experience its historic grandeur.

Gavin Newsom's ripping a page out of President Trump's own playbook ... suggesting Trump's elderly brain might be slipping, and says that might be why he couldn't remember details of their phone call.

Blood pressure changes throughout life – but that doesn’t mean high numbers are harmless or normal just because you’re getting older. We break down how your age affects what’s considered a healthy ...

President Donald Trump and California Gov. Gavin Newsom’s clash over the deployment of federal troops in Los Angeles has escalated a longstanding feud between the two to new heights—and may be setting ...

California Governor Gavin Newsom raised concerns about President Donald Trump’s mental acuity on Thursday, saying the president fabricated details of a conversation about federalizing the state ...

Lawyers for California Gov. Gavin Newsom on Tuesday attempted to re-gain the upper hand in their legal fight with the Trump administration over the president’s decision to deploy the state’s ...

Gavin Newsom leads a new Democratic plot to make Trump seem 'not all there' like Biden By NIKKI SCHWAB, CHIEF CAMPAIGN CORRESPONDENT FOR DAILYMAIL.COM IN WASHINGTON, D.C.

California Gov. Gavin Newsom accused President Donald Trump of being "not all there" as their feud intensifies over the federal response to the Los Angeles riots.

California Gov. Gavin Newsom claimed President Donald Trump is making up conversations about L.A. riots response while tensions escalate over deployment of National Guard and Marines in California.