Congressional Power By Carl McSnarl 1789 Expressed powers granted to Congress 1819 Implied powers are granted 1849 Immigration declared a Congressional Issue 1862 First legal tender notes are issued 1890 Sherman Antitrust Act introduced to regulate monopolies and other competition limiting practices 1935 Wagner Act recognizes labor's right to bargain collectively. 1935 Social Security Act is passed 1956 Interstate and National Highway Act provides for a national interstate highway system 1965 Social Security Act is amended to create Medicare 1990 Americans with Disabilities Act prohibits discrimination against physically impaired, 1995 Gun-Free School Zone Act is stricken down