Trump is just testing the waters, seeing how much he can get away with, and how much resistance he can expect. Challenged, he will just fall back on his usual escapes and evasions; "I was just joking", or, "I was just throwing it out there to watch the Liberal press's head explode."

But he is also preparing the narrative, planting the seed, that a massive fraud is being prepared by his enemies, so that if the election turns out badly for him, he can say; "You see, I told you there was an election fix on", and point to his earlier comments as proof of his fears. A lot can happen between the election and the inauguration (about 10 weeks), time for him to judge the strength and mettle of his allies and enemies, both political and on the street.

If he thinks he can get away with it, I wouldn't put it past him to publicly call for law'n'order support from the skinheads, the alt-right, the militias, the 2nd amendment crowd or the NeoConfederates he has been courting lately with his phony history and tradition memes. The business community is predictable, they will support anyone that promises them another tax cut. If it looks like the GOP takes a beating down-ballot in November, they may just be tempted to back him up to hold on to their seats in the statehouses and the Senate. You're going to be hearing a lot more about the "anti-police radical antifas who have taken over the Democrat party" between now and November.

It ain't over til its over. And I think Trump is afraid what might happen to him once he loses the immunity from investigation and prosecution provided by his office. He is not going to let that happen if there's any way he can avoid it.

If he can't negotiate asylum in Israel, Saudi or Russia he will have little choice but to fight.