ANNAPOLIS — A Maryland judge ordered the state bar to open an investigation Monday into the three lawyers who helped former Secretary of State Hillary Clinton to delete her private emails. Circuit Judge Paul F. Harris Jr. said the complaints lodged against David E. Kendall, Cheryl Mills and Heather Samuelson were “egregious” and said the state bar couldn’t brush them aside by calling them “frivolous.” “There are allegations of destroying evidence,” Judge Harris said at a hearing Monday morning, where he said the state’s rules require the bar to conduct investigations no matter who raises the complaint, and can’t brush...