About three-quarters of Republicans (76%) and 72% of Democrats say a major reason for belonging to their party is that its policies are good for the country, according to the survey of 4,656 U.S. adults conducted Jan. 29-Feb. 13. Republicans (71%) are more likely than Democrats (63%) to cite the harm from the opposing party’s policies as a major reason to affiliate with their party.

Fewer cite other considerations as major reasons why they identify with their party. About half of Democrats (51%) and 45% of Republicans cite having a lot in common with other members of their party as a major reason.

Roughly a third of Democrats (36%) say a major reason for their affiliation is loyalty – that is, they have been a Democrat for as long as they can remember. Just a quarter of Republicans say the same.