President Donald Trump has made disparaging remarks about Oakland many times, and he did it again in the Tuesday night debate with former Vice President Joe Biden. Fox News' Chris Wallace, who moderated the debate, asked the president about his frequent assertion that cities with Democratic leadership are more violent than Republican-run ones. When Wallace said Republican-controlled cities show similar trends of violent crime, Trump launched into a stream-of-consciousness response that, at one point, included an assertion that Oakland was "more violent" under President Barack Obama and asked where law and order was under the Obama-Biden watch. "Look at Oakland,...