q. – How many republicans does it take to screw in a lightbulb?

None, because
a1: they’re not interested in the light
a2: they’re used to being in the dark
a3: it’s not their fault
a4: it’s the immigrants
a5: Trump will fix it

q – How many democrats does it take to screw in a lightbulb?

None, because
a1 – they are not afraid of the dark
a2 – they like starlight
a3 – they live off the grid
a4 – they say Siri, turn on flashlight
a4 – they have inner light
a5 – they know the darkest hour is just before the dawn