Is it possible Allred is internally upset with the direction of the house Dems? I mean why else would an only 3 term Democrat give up his safe seat and probably lose to Cruz in the Senate race? It's also possible he dislikes the job of being a represenative and views potentially being a Senator as a more enjoyable position despite the risks of not winning the seat. It's worth noting Beto was also a Representative for 3 terms when he ran for Senate, but in Beto's case he did it for the national attention and to become a household name. I don't think Allred has the same intentions as he isn't a media seeker.
Iirc Beto made a term limit pledge, so there was also the fact that he was leaving the House anyway.
