The percent of the US population that believes small businesses should be permitted to refuse to serve Jews based on religious grounds is up to 19% this year compared to 12% in 2014, according to a poll by the Public Research Institute.

Support for denying service to Jews has roughly doubled among white evangelical Protestants (up to 24% from 12% in 2014), white mainline Protestants (up to 26% from 11%), and Catholics (up to 20% from 10%), while the religiously unaffiliated (11% vs. 11%) and nonwhite Protestants (19% vs. 14%)

Republicans (24%) are more likely than independents (16%) and Democrats (17%) to say small businesses should be allowed to refuse service to Jews.

The poll detected an increase in the willingness of Americans to refuse service to other groups, such as the LGBT community, Muslims or African-Americans.

22% of Americans say small businesses should be able to refuse to serve Muslims on religious grounds. 24% of Americans say atheists and 29% of transgender people should be refused service.

The percentage of Americans who believe that small businesses should not serve gays and lesbians was the highest, at 30%.

The organization that carried out the survey interviewed 1,100 adults by telephone, with a margin of error established at 3.5%.