[Tom4784]

Originally Posted by jet

Trump criticises Obama every chance he gets, which in my view means he is eaten up with jealously of him.

I bet he really can't stand the prospect of coming to London and not getting a wonderful, joyous reception as befits the big I AM, The Donald, the POTUS.
But it's all Obama's fault (even though it actually isn't) .

I'd imagine that's a huge part of it, tbh.

Obama was a very popular president internationally and Trump would never be able to match that popularity which dents his fragile ego, I'm sure.