After Secret Service Director Kimberly Cheatle testified before the House Oversight Committee for more than four hours on Monday, committee members from both parties called for her to resign. The New York Times reports that Cheatle failed to answer basic questions about the attempted assassination of Donald Trump, declining to say how many agents were protecting Trump or why the rooftop the would-be assassin fired from was left outside of the Pennsylvania rally’s security perimeter. A “moment of unity.” In what the AP calls a “rare moment of unity” for the committee, its chairman, GOP Rep. Jam…