So the actual source I found
"France declared this state of emergency where they closed the borders and they established some degree of warrantless searches. I know how you feel about the borders, but do you think there is some kind of state of emergency here, and do we need warrantless searches of Muslims?" the reporter asked.
"We’re going to have to do certain things that were frankly unthinkable a year ago," Trump said.
The Yahoo reporter then asked Trump, "Do you think we might need to register Muslims in some type of database, or note their religion on their ID?"
Trump responded, "We’re going to have to look at a lot of things very closely. We’re going to have to look at the mosques. We’re going to have to look very, very carefully."
Here, Trump didn’t reject the idea of a Muslim registry, but he also didn’t give an affirmative "yes" that he wanted to create such a database."
http://www.politifact.com/truth-o-me...rican-muslims/
So he didn't even bring it up nor was it his idea but he's definitely racist and definitely wants to put a mark on all Muslims
http://www.cnn.com/2016/07/24/politi...election-2016/
From CNN
"Just so it's clear, Trump did not suggest that Muslim-Americans should be required to wear a symbol that would visibly identify them as Muslims, such as a gold crescent. (On the other hand, he did not rule it out.) "
So your one flimsy source that supports the point I was raising and then two that also support it.
Does Rumsfeld not acknowledging a stupid question make him a lizard, is that how this works?