Washington Revised Code Title 29A. Elections § 29A.68.020. Commencement by registered voter--Causes for

(1) For misconduct on the part of any election officer involved therein;

(2) Because the person whose right is being contested was not, at the time the person was declared elected, eligible to that office;

(3) Because the person whose right is being contested was, previous to the election, convicted of a felony by a court of competent jurisdiction, the conviction not having been reversed nor the person's civil rights restored after the conviction;

(4) Because the person whose right is being contested gave a bribe or reward to a voter or to an election officer for the purpose of procuring the election, or offered to do so;

(5) On account of illegal votes.