Updated

San Antonio Mayor Julián Castro may very well be going through the vetting process to secure a spot within President Barack Obama's Cabinet, the San Antonio Express-News reported Saturday.

The newspaper attributed knowledgeable sources.

The Associated Press reported that Obama is considering nominating the San Antonio mayor to be housing secretary.

If Castro is nominated and is confirmed by the Senate, he would become one of the highest-ranking Hispanic officials in the Obama administration.

The White House and Castro's office aren't confirming that Castro is under consideration for the post.

Castro would succeed Shaun Donovan, a member of Obama's original Cabinet.

Last year, Castro declined a chance to to serve as the transportation secretary.

The mayor would join his twin brother, Rep. Joaquin Castro, who have both shined brightly in the national spotlight. According to the paper, Castro would have to go through a FBI vetting process and a Senate hearing.

Castro was the first Hispanic chosen to deliver the keynote address at the Democratic National Convention in Charlotte.

The 39-year-old has been mayor since May 2009. He marked his third term in 2013.

Earlier this year when asked by the New York Times about who would be a good Democratic Hispanic candidate who could counter a a Republican Hispanic candidate, Castro responded and said: "I don't know...That's a good question. Call me in 2016."

The White House press secretary in the past has said, "The president and others believe that Mayor Castro has a very bright future."

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