Lt. Gov. David Dewhurst has filed for re-election.
The Republican had been expected to make a bid for the U.S. Senate seat now by Sen. Kay Bailey Hutchison, who is running for governor. Hutchison has delayed her resignation, casting uncertainty into the race to replace her.
Dewhurst is the only candidate for lieutenant governor so far. He says his hands would be full in the Legislature, with state budget troubles and congressional redistricting on the horizon.