As U.S. coronavirus case numbers and deaths continue to climb, face masks have become the center of a heated political debate.

While most American adults said they had used a mask while in public spaces within the last month, there were differences across partisan, generational and geographic lines, according to new polling data.

The U.S. Centers for Disease Control and Prevention has recommended the wearing of masks in public places. Their use has been found to help limit the spread of the coronavirus. "Please, please, please wear a face covering when you go out in public,” U.S. Surgeon General Jerome Adams said earlier this week.