The second victory in the Washington presidential nominee race on Tuesday brought Republican candidate John McCain more delegates and Democratic contender Barack Obama a boost to his campaign.
The two forerunners in the presidential nominee race also swept the Wisconsin primary which ended late Tuesday.
The Washington two-step presidential nomination race has a total of 40 Republican delegates at stake, 18 of them tied to Feb.9 caucuses and 19 to Feb. 19 primary. The other three delegates would be assigned to the party's national committee members.
As of 53 percent of precincts counted, Arizona Senator McCain led the primary at 49 percent, followed by former Massachusetts governor Mitt Romney and former Arkansas governor Mike Huckabee, both at 21 percent.
He also won the state's caucuses at 26 percent, slightly ahead of Huckabee at 24 percent.
On Democratic side, among the total of 97 delegates awarded by Washington state, 78 were yielded from the Feb. 9 caucuses and the other 19 were "Super delegates" taken by the party's senior members and officials.
As of 53 percent of precincts counted, Illinois Senator Obama has won 50 percent of votes, three percentage points more than New York Senator Hillary Rodham Clinton.
Although no delegates at stake in the Feb. 19 Democratic primary, Obama's lead in the popular votes was still considered a boost to his bid for the presidential nominee.
On Feb. 9, he beat Clinton in the state's caucuses by 68 percent to 31 percent.
According to the CNN figure, McCain has accumulated 918 delegates, compared to the 1,191 delegates needed to secure his presidential candidacy.
Obama also widened his lead over Clinton in the fight for delegates, at 1,294 to 1,234. However, to win the Democratic presidential nominee, one of them has to obtain at least 2,025 delegates.