Judge Andrew Napolitano: Trump's brazen, unconstitutional overreach foxnews.com

Last week, President Donald Trump followed through on a threat he had been making for months. It was not a blistering or insulting tweet. It was not an attack on the press or congressional Democrats. It was an attack on the Constitution. Here is the back story.
In 2015, Trump began offering that as president, he would build a "big, beautiful wall" along the border of the United States and Mexico and that Mexico would pay for the wall. His stated purpose throughout the 2016 presidential campaign and beyond was that a wall is necessary to stop the onslaught of immigrants illegally entering the United States at places other than lawful ports of entry.