OLYMPIA, Wash. (AP) — Tim Eyman, a career anti-tax initiative promoter, formally announced his entry into Washington’s 2020 governor’s race.

While he had first said he was running last week during a Sound Transit meeting in Seattle, on Monday he filed one of two required initial forms with the state Public Disclosure Commission and held a news conference at the secretary of state’s office in the Capitol.

Eyman, who has been the subject of a long-running campaign finance lawsuit by Attorney General Bob Ferguson, said he’ll be running as an independent. On his campaign website, he promises to veto all tax increases.

He joins several other candidates who have already declared against Democratic incumbent Gov. Jay Inslee, including Republican state Sen. Phil Fortunato, who expressed his objections to Eyman’s announcement, saying “Republicans have a window of opportunity this year. His entering into the race, especially as an independent, makes the thing a circus.”

The state Democratic party last week called Eyman a grifter who “is unfit to run our state or manage our tax dollars.”