Stanley Forman Reed,
United State v. Kahriger — Opinion of the Court
“ As with the above excise taxes which we have held to be valid, the instant tax has a regulatory effect. But regardless of its regulatory effect, the wagering tax produces revenue. As such it surpasses both the narcotics and firearms taxes which we have found valid. [4] It is axiomatic that the power of Congress to tax is extensive and sometimes falls with crushing effect on businesses deemed unessential or inimical to the public welfare, or where, as in dealings with narcotics, the collection of the tax also is difficult. As is well known, the constitutional restraints on taxing are few. ”
