 Nativist movements included the American Party of the mid-19th Century (formed by members of the Know-Nothing movement), the Immigration Restriction League of the early 20th Century, and the anti-Asian movements in the West, resulting in the Chinese Exclusion Act and the so-called "Gentlemen's Agreement" which was aimed at the Japanese.Major restrictions became law in the 1920s and sharply cut the inflow of immigrants until 1965, when they ended.The federal government took charge of finding and deporting illegal aliens, which it still does.