I see this claim so much, and it’s bullshit. Harris didn’t make a single policy concession to get Cheney on board. And why would she? The entire point of having her endorse was to send the message of “Trump is so dangerous that even people who disagree with me are choosing to support me.”
I laughed my ass off at the pathetic, baseless attempts to dispute the 2020 election, but never questioned their legal right to do so (which they failed miserably at). If suspicious Harris supporters believe they have convincing evidence of manipulation, then let their claims be examined and proven or disproven by a recount or in a court of law. Call it copium, but I’d rather check these claims out and be disappointed than pre-emptively assume they’re bullshit.