Sen. Bernie Sanders (I-VT) has hired a self-declared “undocumented” immigrant to serve as his 2020 presidential campaign’s deputy press secretary. Belén Sisa, who previously worked on the Latino outreach side of Sanders’s 2016 campaign, announced her addition to the Vermont senator’s 2020 team in a Facebook post Wednesday. “This is really emotional for me. I can’t help but think of 18-year-old Belén, who felt hopeless and powerless to the anti-immigrant attacks and policies that were holding her back from her dreams,” she wrote. “I can’t help but think of the generations of sacrifice my family has had to do for...