A second round of "No Kings" demonstrations are planned for Saturday, Oct. 18. Here's where events are scheduled in Washington state.

The rallies were "just reinforcement of the view that Donald Trump should not be given a blank check to continue his lawless activities," Sen. Chris Van Hollen said.

"I served this country because I believe in the promise of freedom, equality and democracy,” one veteran said in the lead-up to the Oct. 18 "No Kings" protests nationwide.

Millions are expected to come out for another round of "No Kings" rallies across the United States this weekend, speaking out against the Trump administration's policies.

Organizers said some 2,600 protests were planned in the U.S. on Saturday. The protests were largely peaceful, as demonstrators united in their stated aim to safeguard the country's democratic values.

The demonstrations follow a wave of protests in June that organizers say drew more than 5 million people in cities across the country.

At a “No Kings” protest in Washington, D.C., Bill Nye tells NBC News’ Melanie Zanona that federal cuts to science funding, especially around NASA, are “thoughtless.”