I should start by saying that the Washington Post’s Richard Cohen may wind up being one of the more dangerous people in the country, at least if you happen to be Donald Trump or a member of the Senate GOP majority. Why? Because he’s running around preaching common sense to the Democrats and if we’re not careful, they may start listening. In a column this week, he’s sounding the alarm over something I was just pointing out earlier today. The Democratic candidates for the 2020 nomination (along with many of their overly enthusiastic colleagues in Congress) are loudly and proudly...