He declined to say when asked, if they allegations proved to be true, whether CIA Director John Brennan should resign: "That's not my decision."
Reid also wouldn't weigh in on whether a criminal investigation was appropriate.
"Right now, there are a lot of things going on," he said. "I think we should all just pause for a little bit, not very long, and find out where all this stuff leads."
Senate Minority Leader Mitch McConnell (R-KY) declined to comment.
"My understanding is there's an investigation underway, and I'm not going to comment on an ongoing investigation," he said. "We're watching it very carefully."