The 46th annual Labor Day parade — with the theme “Labor Unions Fighting for a Better Tomorrow” — took place on Monday, Sept. 1.

The 43rd annual Labor Day parade returned to Wilmington after a two-year absence and many attendees were focused on keeping cool.

As parades and other events celebrating the contributions of workers in the U.S. are being held for the Labor Day holiday, experts say President Donald Trump’s stepped-up immigration policies are impacting the nation’s labor force.