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

U.S. Secretary of Transportation Sean Duffy said Thursday he would launch a compliance review of the $4 billion in federal funds allocated to California’s high-speed rail project — the ambitious, but long-delayed plan to send bullet trains from Los Angeles to downtown San Francisco.

USDOT says it will evaluate the funding currently committed to the construction of California’s high-speed rail project, which has run years behind schedule and billions over its projected budget.