Jennifer Rubin: Questions every candidate for House and Senate should answer

We live in an extraordinary time in the United States, when the most pressing issue is not taxes or foreign policy or immigration, but whether our democracy survives. I heartily encourage voters, interviewers, debate moderators and opponents to make both incumbents and challengers for Congress lay out their policy views. More important, however, is to gauge their judgment on a variety of issues that go to the heart of our fraying democratic institutions and basic values:• What will you do i