 Eric Hines at the editor's desk. I'm Taylor Van Syce. Today, President Biden prepares for a critical test as he tries to stay in the race for the White House. ABC's Mary Bruce reports. Facing reporters in a rare solo news conference at the end of the three-day NATO summit. We can and will defend every inch of NATO territory, and we'll do it together. Democrats have urged the 81-year-old to lean more into unscripted moments to show he has the stamina to defeat Donald Trump.