San Antonio Mayor Julián Castro, an ascending star in the Texas Democratic Party, isn't looking to rise any higher just yet.

Some, including us here at the Texas Tribune, have tossed Castro's name about as a potential Democratic contender in the race to replace retiring U.S. Sen. Kay Bailey Hutchison, R-Dallas. It looks like that's a no go, though. Today, he posted a flyer on Facebook, inviting supporters to the Feb. 13 kick-off event for his re-election campaign.

"Representing the city is why I got interested in politics in the first place," Castro said. "I haven’t even finished my first term, so it would be a little premature to look beyond that."

He says in his second term, should he win re-election, he intends to focus on improving education, economic development and quality of life in the Alamo City.

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