'Tom Perez has guts': US labor secretary being eyed as Clinton's running mate

Perez has spent his years at the helm of the labor department fighting for paid leave, overtime pay and visiting workers on the ground - and he's not done yet

It's been a busy week for the US labor secretary, Tom Perez.

On Tuesday night, the White House announced that the Obama administration had finalized a new rule that could potentially expand overtime benefits to 4.2 million more Americans. On Wednesday morning, Perez boarded Air Force Two and with Vice-President Joe Biden and flew to Columbus, Ohio, where they made the official public announcement inside Jeni's Splendid Ice Creams.

Related: Millions could get a raise under Obama administration's new overtime rules

Related: The jobs doctor is in: US Labor secretary makes unemployment 'house calls'