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Americans' average confidence in major U.S. institutions has edged down after a modest increase last year.
While Pope Francis' comments supporting same sex civil unions were a drastic shift in Catholic church guidance, U.S. Catholics have supported gay marriage for about a decade.
Church attendance has been edging down in the U.S., and a decline in "outstanding" local church leaders could be a factor.
American Catholics, about 23% of the U.S. adult population, remained positive about Pope Francis in early August, giving him a 78% favorable rating.