California Gov. Gavin Newsom questions Trump's mental and physical ability as their clash over immigration enforcement rages on.

An escalating clash pits a Republican president looking to fulfill his mass deportation goals against a Democratic governor with White House aspirations hoping to mobilize opposition.

Enten found that Newsom is leading the race to become the next Democratic nominee, standing at 12% odds, according to online prediction market Kalshi. He is followed by Rep. Alexandria Ocasio-Cortez (D-N.Y.) at 10%, former Transportation Secretary Pete Buttigieg at 10%, and Pennsylvania Gov. Josh Shapiro at 6%.

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

Gavin Newsom won praise on Wednesday for his speech Tuesday night seen by a national audience, something many Democrats saw as a shot across the bow to President Donald Trump that they can fight Trump -- and one that sparked new talk of Newsom as the party's standard-bearer in 2028.

The governor bragged about working with ICE in California but said that President Trump was “trying to gin things up to create problems” at protests.

Trump lawyers told the court that Trump has "no obligation" to consult, or even notify California Gov. Newsom before federalizing National Guard troops to quell anti-ICE protests.

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.

CNN chief data analyst Harry Enten on Wednesday broke down why Gov. Gavin Newsom (D-CA) is opposing President Donald Trump and what it means for his potential 2028 presidential campaign. "84% of Democrats nationwide say they want Democrats to take on Donald Trump.

Elected officials, as well as social media influencers, had wide-ranging opinions of the governor’s prime time address warning that democracy is in danger.

I predict that the Democrats' next nominee is someone not yet on people's radars, and that would be the best possible outcome for them.