One of the darkest periods in American history was thrown into stark relief in recent days after a surrogate to U.S. President-elect Donald Trump said a proposal for a Muslim immigrant registry had precedent in the World War II internment of Japanese-Americans.

Citing the 1942-1946 forced relocation of Americans of Japanese descent into what effectively amounted to concentration camps as a legal precedent, Carl Higbie, a former spokesman for the pro-Trump Great America PAC, said that a registry of immigrants from Muslim nations deemed terrorist havens would "hold constitutional muster."

Higbie was referring to a proposal by Kansas Secretary of State Kris Kobach, reportedly a member of Trump's transition team, that would reinstate a George W. Bush-era registry for immigrants from Muslim nations.