Trump administration officials want local health authorities to constantly monitor the 18 passengers for another three weeks, a requirement that far exceeds typical protocols.
The passengers who have been housed in the National Quarantine Unit at the University of Nebraska Medical Center were aboard a cruise ship that became the center of a global hantavirus outbreak this month.
Representative Mike Flood of Nebraska is still meeting with constituents long after most G.O.P. members of Congress have concluded it is too politically dangerous to do so.
Representative Mike Flood speaking with reporters after his town hall in Norfolk, Neb., on Tuesday. He has committed to continuing to regularly hold such events.