Scott Jennings and a former House Democrat battled it out on a CNN panel to the point where guest host Kasie Hunt had to jump in and referee to get the conversation “more on the rails.” On CNN’s NewsNight on Tuesday, Jennings and Val Demings, a former congresswoman from Florida, repeatedly cut each other off as they debated President Donald Trump’s mission in Iran. Demings argued the president has been “all over the place” on what the exact obje…