Study suggests that people have few problems interacting and associating with people who differ from them on issues but attach a political label to the other person that is different from the one you identify with then there are problems.

Donald Trump managed to flip a party from support of free trade to opposition to it by merely taking the opposite side of the issue. Democrats, meanwhile, mocked Mitt Romney in 2012 for calling Russia the greatest geopolitical adversary of the United States, but now have flipped and see Russia as exactly that. Regarding health care, the structure of the Affordable Care Act was initially devised by the conservative Heritage Foundation and implemented in Massachusetts as “Romneycare.” Once it became Obamacare, the Republican team leaders deemed it bad, and thus it became bad.

https://theintercept.com/2018/04/03/poli...epublican/