(BREITBART) — Former Congressman Tom Tancredo joined SiriusXM host Stephen K. Bannon on Breitbart News Sunday to discuss Tancredo’s latest column for Breitbart News, “Obama Invites 18.7 Million Immigrants to Avoid Oath of Allegiance, Pledge to Defend America.”

Tancredo explained that, in July of 2015, the US Citizenship and Immigration Service (USCIS, sometimes shortened by Tancredo to USIS) “decided there was part of the Oath of Allegiance that has been taken by millions, and millions, and millions of immigrants into this country. It’s the last thing they have to do before actually getting their citizenship” that should be made optional. It was the part of the oath in which immigrants promised, “If called upon, I will indeed take up arms to defend the United States of America.”

“They have told immigrants now – the next 18 million that are in the pipeline – they do not have to take that part of the oath. It’s still in there, but they’ve said it’s optional; you don’t have to swear,” said Tancredo.

He noted this change was made without permission from Congress, for reasons USIS has yet to disclose. “Where the hell was Congress? Where is Congress?” Tancredo asked. “Where has Congress been, over and over and over again, in these kinds of issues? They just simply did it.”

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