ABC News has confirmed that Texas Southern University in Houston will host the third Democratic debate in September, as the field starts to shrink from its original cavalcade of two dozen presidential hopefuls. ABC and Univision are hosting the debate on Sept. 12 and, if necessary, Sept. 13. The Democratic National Committee’s qualification bar is rising for candidates, which will help winnow the field. The polling threshold for the September debates will double from the previous level of 1 percent to 2 percent, and the number of individual donors will also double from 65,000 to 130,000. Just six candidates — Joe Biden, Beto O’Rourke, Pete Buttigieg, Kamala Harris, Elizabeth Warren and Bernie Sanders — have hit both the donor and polling targets, though there are still several weeks before the deadline to hit those statistical marks. September’s primetime debate will air live on ABC and on Univision with Spanish translation, as well as on ABC News Live streaming service... John Diggle’s other son will be introduced in the eighth and final season of The CW’s Arrow. Charlie Barnett (Russian Doll) is set as a new series regular in the role of John Diggle, Jr. Known as J.J., he’s the Flashpoint-born son of John Diggle (David Ramsey) and Lyla Michaels (Audrey Marie Anderson). Barnett joins previously announced new series regulars Katherine McNamara, Joseph David-Jones and Ben Lewis. Arrow returns for its eighth and final season on Oct. 15 in its new Tuesday 9 PM (ET) time slot on The CW...