It is easy to guess who would # 1 in that database

Donald Trump's Muslim database, explained

The national panic in the wake of the Paris terrorist attacks shifted into even higher gear early on the morning of Friday, November 20, when Donald Trump told an NBC News reporter that he would "certainly" implement a system to register and track Muslims in the United States.

This idea is pretty clearly unconstitutional, morally repugnant, and not going to be embraced by the bulk of Republican Party politicians. But it comes at a time when Trump continues to ride high in the polls and has repeatedly benefited from past controversies over his own outlandish and often racist statements, and when Republican politicians most certainly are pushing the envelop on anti-Muslim rhetoric and policies in a way that was alien to the George W. Bush–vintage Republican Party's response to 9/11.