You'll have to tank the economy to do that. If we are able - by some miracle - to maintain this course - and have continuous GDP growth, stable unemployment, and a humming economy with increases in manufacturing, etc. over the next 22 months or so, then Trump will be elected by a resounding majority, and likely sweep the nation in a Reaganesque fashion.
We already know the Mueller investigation is going nowhere. That's why the Demosnots are creating all these new investigations to begin in 2019. Mueller's report will come out and find not a shred of evidence of any sort of "collusion" and Trump will declare victory. The Demosnots will not accept the report, and they will start opening all new investigations which will be used to try to keep the scandal machine running.
Trump's goal for the next 2 years should be to keep the economy ticking, and get one foreign policy victory - hopefully move the North Korea thing another click toward denuclearization. If he does that, he's a shoe in.
The Democrat candidates are a joke, other than Hillary Clinton. Hillary, however, just said "all blacks look alike," and will pay for that. Obviously, if a Republican said that, it would have been front page on all the Times, and on CNN and NBC and all the other news outlets. But, it will be saved. Also, the Demosnots are sick of Hillary Clinton - the big meme among Democraps is that they wish she'd go away. Biden is old, and there is so much ammo to laugh at Biden that CNN won't be able to keep him propped up as some sort of statesman. Once out of that range, you're down to Corey "suck me off in a bathroom because I'm Spartacus" Booker, and Kamala "I don't have a drinking problem" Harris -- Oh, wait, don't forget Elizabeth "70 years old and running in open toed mules" Warren, she and her "nationalize all big companies" plan will go over really well, especially if he adds Alexandra "Brain Trust" Ocasio Cortez's plan to put everyone on Medicare and state fund everyone's college educations.