President Obama at 2:10 p.m. Monday will officially nominate Charlotte Mayor Anthony Foxx to be his next transportation secretary, the White House announced.

Foxx’s nomination has been one of the worst-kept secrets in Washington. For weeks, he’s been the rumored choice to take over for outgoing Secretary Ray LaHood, among the few Republicans in an upper-level position in the Obama administration.

Foxx is the first black Cabinet nominee of Obama’s second term. Some had questioned why Obama’s Cabinet did not include more African-Americans.

Foxx’s national brand received a shot in the arm after Charlotte hosted the Democratic National Convention last year. He’s led the city since 2009.

The president will make the announcement from the East Room of the White House.