The story line on the Republican Senate race in Texas is a now familiar one: A veteran politician supported by the GOP establishment is challenged by a young insurgent backed by national conservative groups.
In this distinctly Texas episode in the saga for control of the Senate, David Dewhurst is the reserved, self-made millionaire and lieutenant governor. He's facing off against Ted Cruz, the feisty son of a Cuban exile who calls himself "a proven fighter for liberty because his family knows what it means to lose it."
The underdog is former Dallas mayor and businessman Tom Leppert, who offers himself as the no-nonsense alternative to politics as usual.
In heavily Republican Texas, whoever wins Tuesday's GOP primary is almost sure to replace retiring Sen. Kay Bailey Hutchison.
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