Public Religion Research Institute:
When Americans were asked if there has ever been a time when they were NOT proud to be American, 41% say yes and 58% say no. The proportion who say they have experienced a time when they were not proud to be American has steadily increased, from 31% in 2013 and 35% in 2015 to 41% today.
One in four Republicans (24%), 43% of independents, and a majority of Democrats (54%) say that at some point in their lives they have not been proud to be American. These opinions have remained consistent among Republicans (23%), but independent and Democrat agreement has increased by double digits since 2013 (30% and 36%, respectively).
Religiously unaffiliated Americans (57%) and members of non-Christian religions (55%) are the only religious groups where the majority say there has been a time when they were not proud to be American. Less than four in ten of all other religious groups say there was a time when they were not proud to be American: white Catholics (37%), other Christians (36%), Black Protestants (35%), Hispanic Catholics (33%), white mainline (non-evangelical) Protestants (32%), and white evangelical Protestants (29%).