From Texas Standard:
At 4:30 a.m. El Paso time Thursday, Beto O'Rourke confirmed, in a video with his wife at his side, that he's tossing his hat into the ring, so to speak, and running for president. O'Rourke is one of 15 Democrats who've announced their candidacy so far.
Richard Pineda is an associate professor in the Department of Communication and director of the Sam Donaldson Center for Communication Studies at the University of Texas at El Paso. Pineda says though O'Rourke will be up against another Texan in the primaries, Julián Castro, O'Rourke is "head and shoulders above" him because of the support he generated during his 2018 Senate race.