Passage of Underwood's tariff bill in the Senate would prove more difficult than in the House, partially because some Southern and Western Democrats favored the continued protection of the wool and sugar industries, and partially because Democrats had a narrower majority in that chamber. Seeking to marshal support for the tariff bill, Wilson met extensively with Democratic senators and appealed directly to the people through the press. After weeks of hearings and debate, Wilson and Secretary of State Bryan managed to unite Senate Democrats behind the bill. The Senate voted 44 to 37 in favor of the bill, with only one Democrat voting against it and only one Republican, progressive leader Robert M. La Follette, voting for it. Wilson signed the Revenue Act of 1913 (also known as the Underwood Tariff) into law on October 3, 1913.