Hoover was a candidate for the Republican Party nomination in the United States presidential election, 1920; Strauss campaigned for him and attended the 1920 Republican National Convention on his behalf, but Hoover failed to gain significant support. Strauss again worked for the this-time-successful campaign of Hoover in the United States presidential election, 1928, and was a member from Virginia that year of the Republican National Committee. Over several years, Strauss engaged in activities designed to strengthen the Republican Party in Virginia and the South overall. He also was committed to protecting the reputation of President Hoover; in 1930, on behalf of the White House, he conspired with two naval intelligence officers to illegally break into the office of a Tammany Hall follower in New York who was thought to hold documents that would be damaging to Hoover.