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

Speaking at a "No Kings" rally in Washington, D.C., Bill Nye, the former host of "Bill Nye the Science Guy," urged lawmakers to “stop the abuses of this petulant president [Trump] and his circle of sycophants,” declaring, “No thrones, no crowns, no kings."

Several other Hollywood stars also participated in the No Kings protest across the country, including John Cusack, Justine Lupe, Carrie Coon and Kerry Washington.

President Donald Trump denied being a 'king' after weekend protests, calling demonstrators "whacked out" while Democrats like Chuck Schumer defended the rallies.

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.”