 Meanwhile, at the Republican National Convention, Florida Senator Marco Rubio is slated to take the stage in two and a half hours, a day after former President Trump announced Junior Senator J.D. Vance as his vice presidential running mate. Also expected to speak tonight is Laura Trump, co-chair of the Republican National Committee. So will Rance Priebus, chairman of the host committee, along with other heavyweights like former Ambassador Nikki Haley, Senator...