(CNN) Immediately following his first one-on-one debate with former Vice President Joe Biden Sunday night, Bernie Sanders made a suggestion that could fundamentally change the nominating calendar this year.

Asked by CNN's Anderson Cooper whether the primaries scheduled for Tuesday should be postponed, Sanders responded this way:

"That is a very good question, and as you know Louisiana, and Georgia, and Puerto Rico have delayed their elections. Postponed them, they've got dates in the future. Look, election dates are very very important we don't want to be getting into the habit of messing around with them. But you remember, and I just researched this, 9/11, you know there was a primary in New York City? Do you remember that?....

"....There was a primary. And it was canceled for obvious reasons in New York City and it was rescheduled two weeks later. I would hope that governors listen to the public health experts, and what they are saying as you just indicated, we don't want gatherings of more than 50 people. I'm thinking about some of the elderly people sitting behind the desks, registering people, doing all that stuff. Does that make a lot of sense? I'm not sure that it does."

Which is very interesting.

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