Somewhere buried in my memory is an ancient view on partisanship, ancient meaning it dates to the Cold War or the rise of communism. I think it was Graham Greene who said something like: "I'd rather betray my country than betray a friend." Or maybe it was E.M.Forster who said "only connect"?
(Turns out it was Forster.)
I write this because in my twitter feed someone whose friend voiced support for President Trump denied the friend--threw him out of the house, maybe. Quite a contrast of then and now (though I acknowledge Forster's sentiment was an outlier then, and now. )