Colin Allred courts Black voters in the final days of his bid to unseat Sen. Ted Cruz

U.S. Rep. Colin Allred, D-Dallas, takes to the stage of Sawyer Auditorium on the campus of Texas Southern University in Houston on Oct. 29. Allred, the Democratic candidate for Senate challenging Republican incumbent Ted Cruz, was joined by Georgia Sen. Raphael Warnock for a day of campaigning in the area. (Credit: Douglas Sweet Jr. for The Texas Tribune)

---

In the final days of his uphill bid for the U.S. Senate, Dallas Congressman Colin Allred is working overtime to lock down the backbone of the Democratic party: Black voters.