My guess is the deep state doesnt want that and he got bad advice by not doing it. Thats one of the things that annoyed me with Trump is he hired some of the DC rot and trusted them because they were Republicans not understanding the deep state controls both parties in DC. They then stabbed him in the back every chance they got. If he gets elected for a second term I hope he cleans house. Im sure deep state actors have the goods on most of congress. When both dem and pubs go after somebody thats who you want to support even if you dont agree with much of what they are saying. Because they are not part of the machine that is the deep state and deep state members on both sides go after them, see AOC,MTG,Omar,Trump, Pressley, Gabbard etc...