Yes he will. The influx of legal immigrants from blue states and the invasion of illegal immigrants (some of whom try to vote) is making many political races closer than they should be. Turning Texas blue is unlikely in the short term but I am not so sure about 10 years from now.
It will take some serious and courageous work on the part of Texans to remind these people why they relocated to Texas. Remind them that California was the golden state when it was run by republicans (Reagan and The Duke) ask them why they left CA.
It takes nerve but Texans have that in spades.
Florida same.