Transportation Secretary Sean Duffy was savagely booed Thursday during a news conference on California’s high-speed rail project at the Union Station in Los Angeles. The Donald Trump appointee blasted state authorities for mismanaging the once “exciting” project and claimed it had amounted to a waste of funds.

At the behest of President Donald Trump, Secretary of Transportation Sean P. Duffy Thursday ordered a Federal Railroad Administration review of $4 billion in funding for California's high-speed rail project.

Republicans have long targeted high-speed rail, despite its popularity with a majority of Californians. U.S. Rep. Kevin Kiley, who appeared with Duffy and introduced legislation in December to defund it, blasted the railway as “the worst public infrastructure failure in U.S. history.”