Sanchez didn't carry an overwhelming percentage of the "Hispanic" vote. There was a considerable vote against Sanchez in the "Hispanic" community because he is from Cuba rather than Mexico.
If that is truly the case then Tony Sanchez can expect even more votes than Orlando Sanchez in Houston as well as the rest of Texas. This is not to mention the Black vote in Houston and Dallas that will vote 90% for the Democrats if Kirk is on the ticket.
Orlando Sachez got 75% of the hispanic vote. That's overwhelming in any dictionary.