This is possible!
I think there are a number of things that would lead Republicans to impeach Trump, but, specifically, I think that if Republicans start seeing their base react to the Trump news, or become worried about an electoral backlash that doesn't run through their primary base (harder to know, for them), they will be forced to act on removing him. I think the Republicans are more or less aware of this, and it explains their unseemly haste to pass bills.
I guess my original rebuttal was: if Trump cancelling elections is on the table, then this threat of electoral backlash against the GOP would never exist in the first place? It's a tautology to begin with. (More on this later)
So, for example, I think that if Trump attempted to fix the elections, the Republicans would be forced to remove him. For that reason, I don't believe that fair elections are less likely than impeachment.
The question of what would move Republicans to begin rejecting Trump is more difficult. Vox touched on this issue today in an interview with the editor of National Review, which I think is worth reading:
https://www.vox.com/2017/7/13/15958...ussia-collusion-republican-party-david-french
Note that this doesn't constitute a condoning of their choices. I think they're quislings, collaborators, and arguably traitors, as a party. But this is my analysis of their perspective.
My view is that the Republicans are way past the point of no return. The very act of turning on Trump would be an admission of guilt and complicity with whatever impeachable offense Trump committed - likely treason. If the voters are demanding Trump be impeached, how would admitting that you were a willing and eager accomplice through it all help save yourself? If anything, I see a double price: guilt by association with Trump, and then an additional penalty for ratting on him with his base.
I would like to restate my question to you again, in the hopes that you will also respond to it: if you believe that it is impossible for Trump to ever get impeached by this Congress, what do you think could or will stop him from fixing the elections?
Nothing? But a couple thoughts:
1. The GOP electorate voted decisively in favor of Donald Trump, not the establishment GOP. This is Trump's party now.
2. However, at the same time, Donald Trump has very little actual power. He holds the Republican mandate, but acts solely as a figurehead for the party and the GOP Congress (domestically at least). They are co-dependent on each other, but the GOP relies far more on Trump than vice versa. Acting against Trump is acting against your primary instrument of power.
3. Cancelling/rigging/etc. elections would be the single most blatantly undemocratic act in this nation's history - which is saying something! I'm not saying I have unqualified faith in our nation's electorate, but what I am saying is - in this doomsday scenario, I have infinitely more faith in the American electorate than I do in Congress.
The problem with vesting faith in congress is that they are already far too deep in with Trump, from Cruz to Collins, and have no choice but to protect themselves (because they are complicit); the American electorate can still protest, riot in the street, or resort to extralegal measures, execute a coup, etc. etc. On the other hand, it's not like Trump has ever been a popular leader. He's started at abysmal approval ratings, has no mandate, etc. He starts with practically no legitimacy in the eyes of the electorate to begin with, and has only declined since. The
threat of losing the electorate's legitimacy is what would keep those democratic norms (a free and fair election) in place.
I guess you still have to have some faith that the electorate would reject any pretense of Trump's government having any authority or legitimacy. Obviously, to have any faith in this government and our institutions whatsoever, you also have to believe that the threat of losing the legitimacy and consent of the people is a credible threat. But, in this doomsday scenario, yes, I have more faith in the people than in Congress.