This is more or less what appears to have been happening, and it actually started several years ago. During the 2016 Trump campaign a bunch of neoconservative warmongers switched from defending George W Bush as a saint and decrying Obama as an Ayatollah lover, and began pivoting to endorse Hillary Clinton instead. After Trump won, this coalition between Democrats and Bush-era neocons grew even stronger with the creation of new Democratic think tank projects led by Iraq-raping neocons like Bill Kristol.
So now we’re seeing two warmongering oligarchic parties shoving the Overton window of acceptable opinion as far in the direction of imperialism, militarism and tyranny as possible under the leadership of some of the very worst people alive. By doing this they ensure that these matters are never on the ballot, and that elections are always about issues the powerful are completely indifferent toward like abortion and trans rights instead.
Progressives who want healthcare and a ceasefire in Gaza are being dismissed and ignored while alliances are being made with the world’s most blood-soaked imperialists. Things have been shoved so far to the right that this election is now a showdown between the Trump Party against the Cheney Party, and no matter who wins, the empire wins.
A lot of fuss will probably be made about election-rigging after the results are announced in November, with the loser declaring that the results are the result of Russian interference or Deep State vote tampering depending on who that loser happens to be. But remember this: the worst election rigging is happening right out in the open, to ensure that oligarchs and empire managers are happy with either outcome.
I wouldn't call it Cheney's party like she does. But there's a reason all these warhawk neocons are comfortable endorsing her (like many did Clinton).