San Antonio Mayor Julian Castro grabbed national headlines last week after his primetime speech at the Democratic National Convention. He's getting attention this week for a brief video recorded for the 2012 San Antonio Gridiron show.

In it, Castro poses questions to Siri - Apple's personal assistant. Each click of the button on his iPhone gets the answers it appears the mayor wants.

The video has also been picked up by the website Politico.

The Gridiron Show is put on by members of the local media to spoof events in the news. Politicians often take part in the show. Money raised provides scholarships to journalists.

You can see this video and others made for the Gridiron Show here.