Ex-national security adviser John Bolton on Wednesday ripped President Trump’s aborted plan to invite the Taliban to Camp David, saying the move sent a “terrible signal” and was “disrespectful” to the victims of 9/11 because the Taliban had harbored al Qaeda. Bolton, speaking at a private luncheon, also said that negotiations with North Korea and Iran were “doomed to failure” on the president’s watch, two people who were there told Politico. All the North Koreans and Iranians want is relief from sanctions to support their economies, Bolton told guests at the event hosted by the Gatestone Institute, a conservative think...