She won't. She hasn't had a primary opponent, ever.
I'm not especially happy with her vote on this guy, but it's not enough to risk a Chet Edwards or John Sharp as Senator, something which will not happen as long as she wants to serve.
Most speculation is that she's tired of Washington, since she's got two young adopted kids, and has expressed a desire to be closer to Dallas.
She'd beat Rick Perry if she runs against him in a gubernatorial primary.
Hutchison is the most popular Texas politician in office today, next to W.
AYE-----51
Nay----46
Confirmed
I agree. She won't have a primary challenge, but I'd have to vote against her in a contested primary if her vote trend continues like this.