Voters in favor of Brexit handed British Prime Minister Boris Johnson an electoral victory on Thursday in a landslide not seen since Margaret Thatcher’s win in 1987. Conservatives won seats in British working-class districts that have been Labour strongholds for generations, giving Jeremy Corbyn’s Labour Party its biggest defeat since 1935. What can 2020 Democratic presidential candidates learn from this election? 

Also this hour: President Trump signed an executive order Wednesday following Tuesday's anti-Semitic attack in a Jersey City kosher market that left six people dead, including the two shooters. The order sparked a firestorm online over fears that the order would bring up old debates about Jewish identity and squelch campus protests against Israeli political policy. We try to parse that out.