 NPR's Tamara Keith, thank you so much. You're welcome. We're going to turn now to NPR correspondent Deirdre Walsh, who covers Congress. And she's been looking at how Biden's performance of the debate could affect control of the House and Senate, which, of course, are also up for grabs in November. There is concern among some of the Democrats running alongside him that their efforts to keep the Senate and flip control of the House could be in peril.