 Funding for Here and Now comes from MathWorks, creators of MATLAB and Simulink software, accelerating the pace of engineering and science. Learn more at MathWorks.com. From NPR in WBUR Boston, I'm Peter O'Dowd. I'm Vipa Fernandes. It's Here and Now. Coming up, President Biden remains defiant about his ability to run in this election. You got me, man.