Washington (CNN)Sally Yates didn't bring a smoking gun to the latest episode of the long-running political melodrama entwining the White House and Russia.
The revelations did not in themselves represent a development that could break open the mystery of Moscow's meddling with last year's election and increasingly vocal Democratic claims of collusion between Russia and members of the President's inner circle.
Alone, her appearance didn't prove much. But collectively with the other multiple channels of investigation, it could add up to more. Still, Democrats must be frustrated that they still have not made serious claims about Russian collusion with the White House. And their repeated calls for a special counsel they have no power to task often serves to stress the futility of their minority status on Capitol Hill.