[RideForever]

The way the law is written, a state that submits one slate of electors can have its electoral votes canceled by an act of Congress for no damn good reason at all.

Untrue. Congress separates and meets and debates on the different slates, one state at a time.

There is a progression of acceptance of contending slates of electors, and in some states the election law allows a governor to submit a slate if the state legislature submits 2 slates.

[Alberta's Child]

Untrue. Congress separates and meets and debates on the different slates, one state at a time.

What "different slates" are you talking about? I clearly stated that under the U.S. Constitution, Congress has no authority to change the electoral votes of a state that submitted ONE slate of electors.

But the 1887 law allows Congress to do exactly that.