Yes. Ted Cruz is likely in a Toss-Up race and there won't be that many O'Rourke/Abbott voters.
Uh, sorry. It's Safe R, and the Senate Race is Safe R as well. In fact, both are TITANIUM R, and are so safe that they make NH races between Democratic Women and Republican Men look competitive.
Texas is aggressively moving to the left, and not to mention, Trump is very unpopular down in Texas. Just remember in 2010 when Russ Feingold, a progressive Senator in a state that overwhelmingly went to Barack Obama, was ousted, alongside a Republican taking over the governorship.