 Reporters, among them CBS's Ed O'Keefe, had a testy exchange with White House Press Secretary Karine Jean-Pierre over reports of recent visits by neurologist Dr. Kevin Kennard to the White House. He says she wouldn't confirm those reports. Dr. Kennard's name appears on the public White House visitor logs that show that he's been here eight times. So when she suggests that there's a security concern for explaining why he was here, that is where we got frustrated. And this is CBS News.