Like his predecessor Hiram Johnson, Stephens remained highly suspicious of Asian immigration to California, especially from Japan, which he viewed as an increasingly belligerent nation. In 1919, Stephens openly urged the California State Legislature to enact stricter exclusion laws to restrict Japanese immigrants. He declared that the influx of Japanese was a threat not only to California but to the United States. Through the remainder of his governorship, Stephens sought the aid of other governors and public officials to restrict Japanese immigration. In part, some of his goals were realized by the federal Immigration Act of 1924.