He literally makes up lore for the family like what chinese food and which baseball team they like. Totally imaginary people, who heavily lean Republican, and he uses that to guide where he pushes the Democrat party.
That explains why the democrats literally let Republicans do anything they want. And repubs still have the gall to complain that they're treated unfairly by liberals.
To clarify, said imaginary friends are a couple with kids, so they had a combined 6 votes among 3 trump's elections; Except for 2020 where the imaginary wife voted Biden, BOTH voted for Trump, and this is whom Schumer models his politics off of.