SAN FRANCISCO — The man accused of breaking into former House Speaker Nancy Pelosi’s San Francisco home, bludgeoning her husband with a hammer and seeking to kidnap her went on trial Thursday. Opening statements started in the federal trial of David DePape who prosecutors say assaulted then-82-year-old Paul Pelosi, sending shockwaves through the political world just days before last year’s midterm elections. The attack in the early hours of Oct. 28, 2022, also highlighted how conspiracy theories and misinformation that spread online can fuel political violence. DePape pleaded not guilty to attempted kidnapping of a federal official and assault on...