Snugs, the EP clause is the spiky club of the Left, they have used it to destroy the safeguards of the 9th and 10th Amendments which were intended to establish a balance of powers between People, the States, and the Federal government in a similar way to the Legislative-Judicial-Executive triad at the national level. As far as they are concerned it has no limits as a tool to gain their fanatic ends, and the Supreme Courts going back to the thoroughly-intimidated one in the FDR years have been unable to put any check on how far they will let it go, as they are trapped in the original logical box they constructed in using it (For good and ill) to rubberstamp overarching Federal power.