Even better, demand that they explain themselves, and the party that they've chosen to affiliate with, and demand logical, rational arguments, not those whose only basis is anecdote and overwrought emotional projection, and keep after them until they can produce. They will either produce, in which case you're probably already half-way to turning them into decent human-beings again, and removing the liberal infestation from their minds and souls, or else they'll remove themselves from your company voluntarily, thereby depriving them of the accusation against you that you "chased them away." Instead, go out and "bring home" the realities of the situation to any car whose owner is still stupid enough to display an Obastard sticker.