Explain the clear and present danger principle that justice holmes enunciated in the schenck decision

During World War I Antiwar protests gave rise to many significant free speech cases related to issues and fomenting violence. In the 1919 case Schenck v. United States, the Supreme Court pointed that an antiwar activist did not have a First Amendment right to tribunal draft resistance.

Justice Holmes proposed the clear and present danger test, that would become a vital concept in First Amendment law; but the Schenck decision did not formally accept the test. 

Holmes soon wrote his intention about the clear and present danger test. He intended the said test to refine, not replace, the bad tendency test.

Hope this helps.

the doctrine of nullification recommended that states living inside the union have the one-sided, inalienable ideal to void any law made by the national government that could be esteemed illegal.

the united states was shaped based on a general agreement among its individual states. hence, it is inferred that under the hypothesis of invalidation, since the states are the establishment of the union, they have the ability to referee and disprove unlawful laws.