North American A-36
Trying to nail down the Apache and Invader tags given to the aircraft. The USAF museum intimates Apache as being official and states Invader was an unofficial name. Some sources I've seen say neither name was official, it was a Mustang.
Also, was the A-36 developed, as some say, because the USAAC had no funds for fighter development, but did for attack aircraft, and saw this as a subterfuge means of gaining the aircraft.
Unable to find an official source, so ask the experts here, and can can they site something with gravitas. Thanks all.