That question? Whether “believing that Donald Trump won the 2020 election” is a “very” or “somewhat” important part of Republicanism. Those responses are nearly identical, with 6 in 10 Republicans agreeing that it is.
The notion that Donald Trump “won” the 2020 election is a hoax. It’s specifically a fascist-promoted hoax intended to discredit democratic elections themselves, because a good chunk of the party (6 in 10, apparently) would rather burn democracy itself down than tolerate a world in which a self-promotional tax-dodging rapist incompetent gets booted after only one term in office. There is not even a scrap of evidence to support that Trump “won” an election in which he was quite soundly defeated. Not a single shred of evidence was found to back the Trump camp’s propagandistic claims of “voter fraud.” There is no state electoral count that could even be plausibly contested. There’s nothing. The notion that Trump “won” is entirely the fabrication of a set of Trump allies who crafted it either to coddle the bruised ego of a delusional decompensating narcissist, as means for overthrowing the United States government, or both.
It is fascist propaganda. It is the equivalent of proclaiming that vaccinations turn you magnetic or that a political opponent is in fact a lizard person. It’s not just false, but a toxic attempt to do harm for the sake of doing harm.
That 6 in 10 Republican voters would tell a pollster that maintaining belief in an anti-democratic hoax is evidence of fascist crackpottery now wedged firmly into the heart of Republicanism in general. These people don’t believe a hoax out of nowhere. They believe it because dozens of traitorous Republican officials attached themselves to the claims, promoted the claims, and declared that any Republican officials who did not support the hoax should be drummed out of the party.
It’s working. Those Republican fascists are getting what they want; a manufactured hoax based on nothing but party propaganda has now got a majority of the party’s voters believing that there was a secret plot against them so nefarious that it makes the last of America’s presidential elections illegitimate. To lawmakers perhaps the hoax was mostly a useful excuse for passing yet another round of Jim Crow-themed laws making it harder for citizens to cast their votes, but a majority of those who support them appear to genuinely believe that the last election was invalid based on no evidence other than a clownish Dear Leader and his fascist allies saying so.