Some political observers, like Carl Hulse at the New York Times, are wondering if highly politicized impeachments will become the "new normal." I don't share that concern. Impeachments have always been politicized, because the process is overtly political. What they've never been, and will likely never be, is "normal." That is not because there is some high hurdle that needs to be cleared in order to impeach a president, mind you. According to Article I, Section 2, Clause 5 of the Constitution, the "House of Representatives ... shall have the sole Power of Impeachment," and the House needs only a...