So difficult to find out exactly what Trump said about the debate thing:
ZeroHedge - On a long enough timeline, the survival rate for everyone drops to zero
So, Trump's reasons for not attending are not simply because he doesn't want to debate, or because he is afraid, or whatever, it's simply because it would make for a bad show and a boring time. Trump's a showman, and he knows Trump vs. (((moderator))) is extremely boring viewing. Not to mention, it is boring and irritating for him to have to tell the moderator to shut up all the time. Would YOU want to debate a moderator? Trump is smart for calling out fake debates and this will only rise him further in the polls. Why should Trump need to prove himself to the donors who run the Republican party anymore, that is most definitely a waste of time.
If I were on Trump's strategy team, I'd tell him to ask for Tucker Carlson as a debate moderator. I bet you Trump would do a debate if Tucker was the moderator.