Seven Democratic hopefuls are within striking distance of Trump, with Joe Biden leading the pack.
A Q&A between filmmaker David Modigliani and Texas Monthly's Eric Benson, who followed O'Rourke for the 2018 'Underdog' podcast.
"We believe we have a path to [winning] ... if the Democrats choose a far-left person who is espousing socialistic policies."
Texas law would allow Beto to take a shot at the White House and at Senator John Cornyn at the same time.
Castro has been enormously politically adept ahead of an expected run. O’Rourke’s popularity could present new challenges.