Congress had not have the power to tax. Congress did not have the power to regulate foreign and interstate commerce. There was no executive branch to enforce any acts passed by Congress. There was no national court system.
Well for one, there was the idea that Communism was a direct threat to Democracy itself. That the rise of Communism would be the downfall of Democracy. As well, there was the fear that Communist countries would align with each other, the threat of nuclear war was already a huge scare and as such an alliance would have been seen as a threat to the US.
<span>The Tenure of Office Act. Johnson felt the Act was unconstitutional and removed the Secretary of War, in contravention of the Act, which forbade the President from removing Cabinet members without consent of the Senate. This led to an impeachment, but acquittal by one vote.</span>