One poll suggests the race is "too close to call.” The underdog Democratic challenger has consistently outraised his opponent. But can Beto O'Rourke beat Ted Cruz?

It's not impossible. But, O'Rourke has his work cut out for him.

As political observers point out, Cruz is running in a state that's still dominated by Republicans. But even Cruz has repeatedly warned supporters of the Democratic enthusiasm this election cycle.

On Capital Tonight at 7, we’re taking a look at what’s being labeled the marquee race in Texas this election cycle. 

Learn more about these stories and other issues affecting people across Texas on Capital Tonight airing Monday through Friday at 7 p.m., on channels 1, 8, and 200 in Austin and 14 and 200 in San Antonio. Stick with Spectrum News for continuing 2018 election coverage.