This does not accurately describe the picture.

When the US went to Iraq the approval rating was in the 90s(correction I mixed up Iraq and Afghanistan, Iraq was 70-80s) because the US had been attacked, and Bush took the time to sell the war to the Americans (with lies) by the time all the disasters kept coming in, support dropped to the 40s.

This war started in the 40s approval rating. If bodies start coming home in mass, I don't know how things will turn out for Trump and his party but its already looking like a disaster for them and it hasn't even hit the really ugly part yet.