The White House’s assertion that the case is closed surrounding national security officials’ use of Signal is getting pushback in Congress, even among some Republicans who say their own probes will press on.

On Monday, the White House said it had taken steps to ensure the inadvertent addition of a journalist to a group chat to discuss sensitive information about a pending airstrike in Yemen can “never happen again.”

But Sen. Mike Rounds (R-S.D.), a member of the Senate’s Armed Services Committee, noted lawmakers’ plans to probe the matter are not over after asking for an investigation by the inspector general of the Department of Defense.

“I think that's very hopeful messaging,” he said when asked by The Hill about the White House’s comments. “And maybe it is – but we'll wait and see what the inspector general for the DOD says.”

“It’s already ongoing. We already requested it – the committee did on a bipartisan basis – and we'll look at it on a bipartisan basis.”

Sen. Todd Young (R-Ind.) was among those on the Senate Intelligence Committee who told national security leaders gathered recently for the annual worldwide threats hearing that he had additional questions on the matter.

“All concerns haven't been addressed. So there will be more to be learned going forward,” he told The Hill.

To be sure, many Republicans were uninterested in addressing the topic at all. Even as Director of National Intelligence Tulsi Gabbard and CIA Director John Ratcliffe appeared before lawmakers in the two days after the news broke, many did not raise the issue during their time for questions.

But bipartisan efforts to review the........

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