In maybe 2-3 more elections, the Democrat party will be splintered, leaving lots of opportunities for new parties to step into the breach.
And the GOP, by the way things are going.
I've heard of this arragiment on FR
Consertive/Constutuion
Rino/MainStream Demo
Green/Kennedy liberal.
Think Italy and call us back.
In case of seriously splintered or multiple parties it may become necessary to govern by coalition. This is the prescription for paralysis and disaster, as there is no "sugar daddy" country willing and capable of guaranteeing our national security while the parties keep squabbling. Hence IMO the idea is very dangerous and best be aborted.