On the campaign trail, Super Tuesday was a romp for Joe Biden and DonaldTrump — though both men stopped short of a clean sweep in their parties’respective contests. Down the ticket, we now have a clear view of whatthe November general election will look like in some of the nation’smost pivotal House and Senate contests. And yet, for all of that,Tuesday’s most consequential news might be about someone who isn’t goingto be on the ballot this fall: Sen. Kyrsten Sinema. The colorful Arizonaindependent announced that she will not seek reelection this year — amove with significant implications not just for November, but for thefuture of the Senate. Politico Deputy Managing Editor for Congress ElanaSchor sits down with Playbook Deputy Editor Zack Stanton to discuss whatit all means on the micro level — and the larger trend it hints at on amacro level.