A lieutenant in the U.S. Coast Guard who was arrested on gun and drug charges last week was found to have an arsenal in his home and a hit list that included multiple Democratic figures including House Speaker Nancy Pelosi and Sen. Kamala Harris.

Lt. Christopher Paul Hasson, 49, is appearing in federal court today, as ABC 7 reports, and is now facing charges of domestic terrorism.

A court filing by prosecutors on Tuesday requests that Hasson be held until trial because he poses a potential threat and intended "to murder innocent civilians on a scale rarely seen in this country."

The filing also pointed to a letter found on Hasson's computer, drafted in 2017, in which he allegedly wrote, "I am dreaming of a way to kill almost every last person on the earth. I think a plague would be most successful but how do I acquire the needed / Spanish flu, botulism, anthrax not sure yet but will find something."

As the New York Times reports, Hasson is a self-described white nationalist, and he also drafted a hit list of prominent individuals he deemed "traitors." These included Democratic presidential hopefuls Harris, Corey Booker, and Elizabeth Warren (whom he listed as "Poca Warren"), as well as Pelosi, House Representatives Ilhan Omar, Alexandria Ocasio-Cortez and Maxine Waters, and Senator Richard Blumenthal (whom he listed as “Sen blumen jew”).

The list also included media figures like CNN's Van Jones, Don Lemon, and Chris Cuomo.

Hasson wrote in that letter to friends that he intended to start a race war, and added, "Much blood will have to be spilled to get whitey off the couch."

The letter was composed not long after the deadly incidents in Charlottesville, Virginia, and Hasson further said he hoped to establish a "white homeland" in the Pacific northwest through the use of "focused violence."

Authorities found 15 guns and over 1,000 rounds of ammunition at Hasson's Maryland home, as well as a stash of illegal narcotics and steroids that prosecutors say he was collecting in order to aid in the execution of his violent plans.

Among his many internet searches over the last two years, Hasson searched "civil war if Trump impeached."

As the Washington Post reports, Hasson has been employed at U.S. Coast Guard headquarters in Washington since 2016, and previously served in the Marine Corps and the Army National Guard.

Court filings suggest that Hasson had been studying the 1,500-page manifesto written by right-wing Norwegian terrorist Anders Behring Breivik, who murdered 77 people in Norway in 2011. According to the Post, Hasson's recent actions "echoed Breivik’s attack preparations."

It remains unclear what prompted federal authorities to arrest Hasson on Friday and search his home.