[Thiệu Ngô]

While Oct. 18's "No Kings" protests share a name with its predecessor, organizers are expecting an unmatched flood of people for what they believe will be the largest single day of protest in modern American history.

Things have changed in the last four months, organizers and activists told USA TODAY, as the Trump administration has ramped up immigration enforcement, sent troops into several Democratic-controlled cities, made massive changes to American health care and have cracked down on the First Amendment.