The cybersecurity expert who was fired by President Donald Trump last month filed a lawsuit on Dec. 8 against the Trump campaign and one of the president’s lawyers who made incendiary remarks about him. Christopher Krebs directed the Department of Homeland Security’s (DHS) Cybersecurity and Infrastructure Security Agency (CISA) until Nov. 17, when Trump fired him. The firing came shortly after Krebs and others released a joint statement calling the election “the most secure in American history Krebs said in the lawsuit, filed in Maryland, that since Trump campaign lawyer Joe diGenova made the threatening remarks, he has been “bombarded”...