Is it any wonder Trump has gone off into the deep end? He hasnt got anyone to really reign him in, at the beginning he had a few saner minds (compared to today) but this was always coming when he eventually surrounds himself with people like the war monger Bolton and co.
At least the likes of Hope Hicks who was relatively close to him, probably akin to a grandfather/granddaughter relationship, then Paul Ryan as much as he had his own agenda, looking back on it actually kinda gave some sort of crap for the American people unlike ol Mitch... then his generals Mattis/Kelly/McMaster all decorated army types brought up to reign crazy in an authoritative way and now he has none of this and descended into madness in his own tiny world.
Also - before the last few days, Trumps polling was stable around an average of 42% + but in the last few days he's dropped to an average of 41.5% per fivethirtyeight.