DALLAS -- On Election Night, keep an eye on Tarrant County.

That’s one point on which Republican U.S. Sen. Ted Cruz and Democratic U.S. Rep. Beto O’Rourke are likely to agree.

The candidates for the U.S. Senate have long acknowledged that the votes in Tarrant County are crucial because they serve as a guide to any political shift that might happen in Texas. Tarrant County has remained red through the years as nearly every other major urban county has gone blue.

“Tarrant County is indeed a bellwether,” said Jim Riddlesperger, a political science professor at TCU.

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