You mention "checks and balances" but which ones are you referring to? All three branches of government are controlled by the same party. Perhaps you can clarify if I'm mistaken, but you seem to be referring to anti-democratic putative "checks" within the executive branch. Those are nowhere in the constitution.
What's the big news right now? Republicans defunding NPR, which spent the last five years calling republicans and white people "racist." Sorry, that's democracy in action!
> In practice, one party dismantling democratic institutions and checks and balances, or stacking the courts, or accepting bribes in public, or drawing districts in a way to benefit them are normal,
California's "independent redistricting commission" drew a map where republicans have 17% of the seats despite getting 40% of the vote. That's worse than Maryland's quite deliberately gerrymandered map, where republicans got 16% of seats despite getting 35% of the vote. "Independent" redistricting commissions get taken over by democrats in practice, like every other putatively non-partisan political body.