Biden vows to stay in race amid growing calls to drop out

President Biden said again he would stay in the presidential race after slamming elites who have called for him step aside. He says he still has the support of voters. As he fights for his political future, Mr. Biden hopes the support of Black voters and union workers will propel him to another victory. NBC News has confirmed that a Parkinson s specialist has visited the White House eight times between last summer and this spring. The White House says Mr. Biden does not have Parkinson s disease. Citing security, it would not say why the doctor visited. NBC News Kelly O Donnell and Hallie Jackson report. Subscribe to NBC News: Watch more NBC video: NBC News Digital is a collection of innovative and powerful news brands that deliver compelling, diverse and engaging news stories. NBC News Digital features Nightly News, Meet the Press, Dateline, and the existing apps and