text:  Live from NPR News in Washington, I'm Jack Spear. White House Press Secretary Karine Jean-Pierre pushed back today during a Times-testy White House news conference, questioned repeatedly on a New York Times report that Parkinson's disease expert visited the White House several times over the last year. Asked about that, she said the president was evaluated by a neurologist, and according to a medical summary released in February, showed no signs of neurological disease.