Today marks the unofficial start of the campaign for the midterm elections. This year\u2019s midterms will be the first major referendum on the Biden era of government \u2014 and a test of how much voters want to reinstall the Trump wing of the Republican Party. \n\nOn today\u2019s episode, Astead W. Herndon, a political reporter and the host of our new podcast, \u201cThe Run-Up,\u201d offers a guide to the campaign. He\u2019ll explore the forces at play in this election and how we arrived at such a fraught moment in American politics.