The investigation is coming to a close after 2 years and more than 200 interviews. Senate Intel Committee Chairman Richard Burr said the decision to end the probe was made after the committee started running out of new questions to ask.

"If we write a report based upon the facts that we have, then we don't have anything that would suggest there was collusion by the Trump campaign and Russia," said Sen. Richard Burr, R-N.C., the chairman of the Senate Intelligence Committee, in an interview with CBS News last week.

Burr was careful to note that more facts may yet be uncovered, but he also made clear that the investigation was nearing an end.
"We know we're getting to the bottom of the barrel because there're not new questions that we're searching for answers to," Burr said.