It’s tempting to think that our current class of politicians is uniquely lousy, especially after watching them nationalize health care, a business that comprises one-sixth of the U.S. economy. Actually, Obamacare builds upon Medicare and the legislative era of its passage likewise featured some pretty sick-making stories. Bobby Baker, the infamous wheeler-dealer for Lyndon Johnson, “fixed” many legendary deals in Congress. Now, 50 years after scandals forced him to resign, Baker has re-emerged with tales of drunken, lecherous Congressmen, votes bought with crisp wads of $100 bills, and advice to a Senator’s widow on how to dispose of $2 million...