Sen. Bernie Sanders (I-Vt.) is a serious contender for the 2020 Democratic presidential nomination — arguably the front-runner. Time to ask him a few serious questions: 1. In 2016, you were one of only two non-Republican senators to back a bill from Sen. Rand Paul (R-Ky.) calling for an intrusive annual “audit” of the Federal Reserve, which former Fed chairman Ben S. Bernanke , Wall Street critic Sen. Elizabeth Warren (D-Mass.) and the Obama […]