President Donald Trump canceled nearly $1 billion in federal funding for the high-speed rail project in 2019, during his first term. The Biden administration later restored the funding and, in December 2023, allocated $3.3 billion more.

Duffy, speaking at Union Station in Los Angeles on Thursday morning, said the Federal Railroad Administration will review the rail project and its leadership.

The Trump administration announced Thursday that it will launch a review of the multi-billion-dollar California high speed rail project, which federal authorities have said is over budget and has been mismanaged.