Congress also settled the issue of Chinese immigration, passing the Chinese Exclusion Act in 1882. Arthur initially vetoed a similar measure, which he believed contradicted the United States' treaty with China, but eventually signed a compromise bill, which banned immigration from China for ten years. Tariffs, a major issue in the campaign, remained largely unchanged in the four years that followed, although Congress did pass a minor revision that reduced them by an average of less than 2 percent. After a half-hearted attempt at the nomination in 1884, Arthur retired and died two years later.