The White House caused a social media stir on Wednesday by leaving the door open to a ground invasion of Iran.Press Secretary Karoline Leavitt stopped short of ruling out ground troops during the first briefing since the military campaign launched."I know there's many leaders in the past who like to take options off of the table without having a full understanding of how things could develop. So again, it's not part of the current plan, but I'm not going to remove an option for the president tha...