In the wake of the overwhelming passage of Prop 50, California's very small Republican delegation will get even smaller. Trump, who received 38% of the popular vote in 2024, has already vowed to challenge the statute in court.
There are reportedly at least three lawsuits already working through the system at present. They have location working against them. 
Craig Huey is a political pundit and speaker who spent much of his life in California and keeps up with its politics.
"There are several lawsuits right now going on to stop it. I don't think any of them will prevail because they're going to be in the California courts, and they'll go to the California Supreme Court which is probably the most radical. So, there's no chance this is going to win. Now will it win if it went to the U.S. Supreme Court … I don't think they would even hear the case."
Prop 50 is brazen in its simplicity.
It’s only a temporary measure, but from 2026 until 2030, the next census it gives power to draw congressional districts to the Democrat-heavy state legislature instead of the existing independent commission. The commission resumes responsibility for drawing the state’s political map after the next census.
California’s Legislative Analyst’s Office notes that the maps approved under Prop 50 must still follow federal law (e.g., one-person-one-vote, Voting Rights Act), but they would not be required to follow the stricter state-level criteria that the independent commission previously applied.
The time for Republicans to fight Prop 50 was on the front end, and they dropped the ball, Huey said.
"The failure of the Republicans to be able to do what's right with social media, with digital marketing, with collecting a database and being able to get out the vote with the ballot harvesting … (That was) very successful on the Democratic side.
“But the big winner, not the American people, is Gavin Newsom, who built himself a database nationwide of donors and built himself a volunteer list and built himself such an expansion of social media out of nowhere. He has become a dominant leader in America. And of course, he wants to run for president."
