Three-fourths of Republicans participating in Saturday’s South Carolina GOP primary say they support presidential hopeful Donald Trump’s proposal to ban all Muslims from entering the U.S., according to an exit poll. 

Just days after the terrorist attack in San Bernardino, Calif. – the worst on U.S. soil since 9/11 – Trump sparked a media backlash for saying that all Muslims should be temporarily banned from entering the country.

The proposal has been ridiculed as impossible to implement and called racist by some, but it has resonated with many people concerned about the potential for terrorists to infiltrate the U.S.