In Abrams v. U.S., the Supreme Court in 1919 upheld the convictions of
several individuals under the 1918 Sedition Act for distributing leaflets
opposed to U.S. intervention in the Russian civil war involving the
Bolsheviks.
In Debs v. United States (1919), a low point in the protection of free
speech during wartime, the Court sustained a socialist leader’s conviction
under the Sedition Act of 1918.
Epton v. New York (1968) declined to review the convictions of Marxist
leader William Epton, who said his convictions violated his First Amendment
free speech rights.
Frohwerk v. United States (1919) upheld a conviction for an article
criticizing World War I while also affirming that First Amendment rights do
not disappear during wartime.
