In 1936, Steiwer decided to run for re-election. This time, he was seeking a full four-year term in the Oregon State Senate. He was the only Republican to file for the District 18 senate seat."Many File for Public Office", Capital Journal, Salem, Oregon, March 23, 1936, p. 4. On the Democratic side, George H. Wilcox filed for the District 18 position."GOP May Get House Control", Oregon Statesman, Salem, Oregon, May 19, 1936, p. 9. However, before the general election was held, Wilcox was forced to withdraw from the race after he moved out of the district."Local News Briefs", Oregon Statesman, Salem, Oregon, September 22, 1936, p. 5. As a result, Steiwer was unopposed in the general election and retained his senate seat representing Gilliam, Sherman, and Wheeler counties."Democrats Control Oregon House with Senate Republican", Capital Journal, Salem, Oregon, November 4, 1936, p. 11.
