Elections have consequences, and for Democrats, the consequences of failing to win enough seats in the past three congressional elections to have control of the Senate have been enormous. Not only has the Republican-led Senate approved significant tax reform legislation and repealed the Obamacare individual mandate, it has also confirmed 31 federal appeals court judges and two Supreme Court justices, leaving what will likely be a decades-long mark on the judicial branch. And after recapturing the Senate in the 2018 elections, Republicans are guaranteed at least two more years of controlling who is appointed and confirmed to the judiciary, which...