Secretary of Transportation Sean Duffy immediately moved to roll back fuel efficiency standards moments after being sworn in ...

Hours after being sworn in as the new U.S. Secretary of Transportation, Sean Duffy took aim at the main way the federal ...

US President Donald Trump's pick to run the Department of Transportation was sworn in to his new job yesterday. And as widely ...

Sean Duffy took aim at the main way the federal government regulates miles per gallon for cars and pickup trucks — also a principal way that it regulates air pollution and addresses climate change.

Sean Duffy took aim at the main way the federal government regulates miles per gallon for cars and pickup trucks — also a principal way that it regulates air pollution and addresses climate change.