The first american combat troops arrived in vietnam during the administration.

The first combat troops arrived in Vietnam during the Johnson Administration. The United States had been giving aid to the French in Vietnam for nearly a decade before they dropped out and America got involved. America was only in Vietnam to act as a policing country. War was never declared on Vietnam but Congress passed the Tonkin Gulf Resolution which gave President Johnson broad military power without actually declaring war.

Yes it has . that is why fake news is such an issue