The Democratic debates tonight and tomorrow will likely stick to the familiar script from the first ones, with candidates tripping over each other to see who can promise the biggest tax-spend-and-regulate agenda. This doesn't make for compelling television. President Trump nailed the description of the first round with his one-word tweet, "BORING!" To make the debates more exciting to watch and to provide voters with a glimpse of reality into Democrats' fantasy-world policy proposals, the CNN moderators must press the candidates on the consequences of their proposals. A good place to start is by challenging their uniform support of the...