Beto O'Rourke just did Republicans a massive favor on guns

7:38am PDT - September 13th, 2019    beto o'rourke - CNN

Beto O'Rourke's best moment on Thursday's Democratic presidential debate -- which also doubled as his best moment in the 2020 campaign to date -- came when ABC's David Muir asked whether he supported a mandatory buyback of assault weapons.