The Trump administration has initiated a review of the California high-speed rail project, which has attracted both skepticism and support amid significant delays and funding questions. Transportation Secretary Sean Duffy is leading an investigation into the planned $135 billion project, with concerns over the potential rescission of $4 billion in federal grants. This review has sparked protests, as officials from the Trump administration, including Duffy, faced boos from crowds during announcements regarding the project. Despite bipartisan criticism, some California Republicans continue to voice their support for the high-speed rail. Polling indicates a majority of Californians still back the project, despite its challenges.