—continuing to assume that freedom of the press prevents Congress from prohibiting circulation of newspapers containing lottery advertisements

It may go further, and through its power of exclusion exercise, within limits, general police power over the material which it carries, even though its regulations are quite unrelated to the business of transporting mails.

Obviously, the First Amendment, which guarantees freedom of speech and of the press, is not violated by exclusion from the mails of lottery tickets

This Court consistently has upheld Congress' exercise of that power to exclude from the mails materials that are judged to be obscene.

"It must be left to congress, in the exercise of a sound discretion, to determine in what manner it will exercise the power it undoubtedly possesses

—the limitations of the First Amendment were recognized as follows (143 US 110, at pages 134, 135, 12 S. Ct. 374, 36 L. Ed. 93): "The circulation of newspapers is not prohibited, but the government declines itself to become an agent in the circulation of printed matter which it regards as injurious to the people. The freedom of communication is not abridged, within the …

We cannot regard the right to operate a lottery as a fundamental right infringed by the legislation in question; nor are we able to see that Congress can be held, in its enactment, to have abridged the freedom of the press....[T] he government declines itself to become an agent in the circulation of printed matter which it regards as injurious to the people

The ground on which prior acts forbidding the transmission of lottery matter by the mails was sustained, was that the power vested in Congress to establish post offices and post roads embraced the regulation of the entire postal system of the country, and that under that power Congress might designate what might be carried in the mails and what excluded.

"It is not necessary that Congress should have the power to deal with crime or immorality within the States in order to maintain that it possesses the power to forbid the use of the mails in aid of the perpetration of crime or immorality."

Additionally, the early years of free speech jurisprudence saw laws routinely upheld that by today's standards clearly interfere with commercial speech.