 From NPR and WBUR, I'm Peter O'Dowd in Phoenix. I'm Anthony Brooks in Boston. It's Here and Now. President Biden says he is staying in the race despite doubts from some in his own party about his ability to wage a successful re-election campaign. In what was arguably the most anticipated news conference of the summer following the closing of the NATO summit in Washington, D.C. yesterday, Biden insisted he is still the best Democrat to defeat Donald Trump in November.