That's because Raffy wants to be able to ride in on a white horse and save the day against his Snidely. Just like say, 'Dudley Do Right' of the Royal Canadian Mounted Police:
Raffy/Ted has a lot in common with Dudley: they are both Canadian and they are both good at overestimating their own abilities. Dudley thinks he can ride a horse and save the day. Raffy thinks he can be a Senator and save the day.
And who is Raffy's boogie man? Why none other than Conservative Texas Lt. Governor David Dewhurst.
Raffy's problem is that Dewhurst is a Conservative stud. As Land Commissioner he fired all the Democrat hacks that were on Garry Mauro's payroll. Since he's been Lt. Governor, he's shepherded a list of conservatives laws through the Texas Senate as long as your arm, he is solidly pro-life and he puts his money where his mouth is: he's been giving money personally to groups like Texas Right to Life for years, so he's no 'Raffy Come Lately.'
But Raffy/Ted has been busy romancing out of state right wing nitwits and has charmed a few. But Texas Conservatives know Dewhurst. Plus he can spend a gazillion bucks of his own cash to set the record straight. That's why it will be "NO SALE" when Raffy cranks up the BS machine in the coming months. The Dew will meet him at every turn and out shout him.
And while the Dew ain't no Snidley Whiplash - Raffy is Dudley Do Right through and through (and not in a good way).
So the only upper chamber Raffy has a shot at is the upper chamber on Ottawa.