Elaine Chao has been sworn in by Vice President Mike Pence as the next transportation secretary following her Senate confirmation.
Chao served as labor secretary for eight years under President George W. Bush.
She is the wife of Senate Majority Leader Mitch McConnell of Kentucky.
McConnell attended the swearing-in ceremony.
Chao is expected to take a leading role in President Donald Trump’s goal of investing $1 trillion in infrastructure to improve highways, rail service and bridges.
Chao was deputy transportation secretary under President George H.W. Bush.