Then around 10:15 a.m., he announced it was down to two.
Cities of Miami, Milwaukee, and Denver were in the running, bringing the total field down from eight.
Then Denver dropped out, Turner said.
On paper, Houston has the best shot, said mayor Sylvester Turner.
"Our chances grew exponentially," Turner said.
Turner has been more involved with the DNC bid after a failed bid for Amazon that he bemoaned when results came out.
Turner expressed disappointment over the failed bid for Amazon's new headquarters after a city partnership offered the Seattle-based company at least $268 million in "cash and tax incentives."
RELATED: What Houston offered Amazon to build headquarters here
Turner also suggested it helps our chances of getting the Republican convention four years later.
So @HoustonTx's chances have gotten exponentially better to host the presidential nominating convention. I am very excited about the proposal we have submitted. @DNC And it sets us up to host @RNC in 2024.— Sylvester Turner (@SylvesterTurner) June 20, 2018
Details of the bid have not been released.