The Latest: Biden news conference is key event as he faces calls to step aside

President Joe Biden is holding a news conference in what is considered a key event in a monumental week for his campaign. After a dismal debate performance, Biden has been fending off calls to step aside as the party’s presumptive nominee. His much-anticipated news conference comes Thursday evening on the last day of the NATO summit. Wednesday Peter Welch of Vermont became the first Senate Democrat to call for Biden to step aside. And a ninth House Democrat also called for Biden to end his campaign.