Well, the bill was co-authored by Sens. Levin (D) and McCain (R) so it has bi-partisan support.
I would say that Senator McCain and any Democrat makes for Partisan support.
Not that there is anything wrong with that. I'm pretty partisan myself. I just rarely agree with Senator McCain.
At the end of section 1031, add the following:
(f) EXTENSION TO UNITED STATES CITIZENS
AND LAWFUL RESIDENT ALIENS.—The authority
of the Armed Forces of the United States
to detain covered persons under this section
extends to citizens of the United States and
lawful resident aliens of the United States,
except to the extent prohibited by the Constitution
of the United States."
Since Federal Courts interpret what is and is not prohibited by the Constitution this probably means that they will detain whoever they decide to detain and let it be tied up in the courts. So the detention could be months or years until the Constitutionality is decided.