They should be worried..
Trump is packing his rallies 50,000 to 1...
Biden isn’t gonna win. (unless his cheating machine is that good)
And therein lies the crux of this entire election. There's absolutely no way Biden wins if only legit votes are counted. The Marxists will be pulling out all the stops in this election, as to them, the ends justify the means.
With each subsequent election - 2018 midterms being the most recent example - they've been honing their craft when it comes to voter fraud. Unless pre-election polls can accurately take this magnitude of cheating into account, they're meaningless.
Cautiously optimistic, with the champagne on ice.