After the war, Western Washington was a center of radical labor agitation. Most dramatically, in 1919, a dispute over post-war lowering of waterfront wages spread to become the Seattle General Strike. The Industrial Workers of the World played a prominent role in the strike. Seattle mayor Ole Hanson became a prominent figure in the First Red Scare, and made an unsuccessful attempt to ride that backlash to the White House in an unsuccessful bid for the Republican nomination for the presidential election of 1920.