If approved, Mayor Anthony Foxx of Charlotte would be the first black Cabinet nominee of President Obama's second term. (US Department of Labor/Creative Commons)

If confirmed by the Senate, Foxx would replace Ray LaHood, who said in January that he would not return for a second term. Foxx, first elected mayor in 2009, helped lead last summer's Democratic National Convention in Charlotte.

Foxx will be the first African-American Cabinet nominee of Obama's second term. The initial Cabinet picks of the president's second term -- Secretary of State John Kerry, Defense Secretary Chuck Hagel and Treasury Secretay Jack Lew -- were all white men, which led to criticism of the lack of diversity in the selections.

U.S. Attorney General Eric Holder is the only African-American to lead a Cabinet agency. Earlier this month, Foxx announced he wouldn't run for re-election in the Queen City.

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