By WILL WEISSERT
EL PASO, Texas (AP) - Beto O'Rourke has already used his once-longshot Texas Senate run to become a national Democratic phenomenon and trigger whispers that he could be a 2020 White House contender.
Could it be enough to upset - or even stay close to - incumbent Ted Cruz in a state as deeply conservative as Texas?
The two square off Tuesday in a closely watched Senate race.
O'Rourke's energetic and optimistic campaign, and a backstory that included a stint as a punk rocker, helped turn what looked like a Cruz cakewalk into a potential nail-biter.
Cruz has made no secret about his desire to run for president again after President Donald Trump leaves office. Trump recently campaigned in Houston to help him.
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