Attorney General Loretta Lynch said Sunday that President Obama’s endorsement of Hillary Clinton for president does not create a conflict of interest in the FBI’s ongoing investigation of her State Department email. Ms. Lynch insisted that the federal probe of Mrs. Clinton’s unusual email setup at the State Department, which conceivably could result in criminal charges against the likely Democratic presidential nominee, is being handled like any other case. “This is not a conflict for me or for the department or anyone. We will continue to do all of our work in the same way in which we always have,...