MARQUARDT: The acting secretary of defense is weighing in on the deployment of an aircraft carrier to the Middle East. Patrick Shanahan tweeted saying, in part, that, "It represents a prudent repositioning of assets in response to indications of a credible threat by Iranian regime forces. We call on the Iranian regime to cease all provocation. We will hold the Iranian regime accountable for any attack on U.S. forces or our interests." For more, CNN Pentagon reporter, Ryan Browne -- Ryan?</s>RYAN BROWNE, CNN PENTAGON REPORTER: This tweet by Secretary Shanahan clearly indicating that the U.S. does see a credible threat. It's received intelligence saying there's a threat against U.S. forces and interests in the region. And that this redirecting of the carrier strike group on the deployment of a bomber task force is part of a response to that threat. Now, of course the U.S. has thousands of forces in the region. Often, they operate in close proximity to Iranian troops and their local militia proxies. This is something the U.S. has watched for a long time, threat indicators from Iran. Now we're being told this deployment is in response to that threat -- Alex?</s>MARQUARDT: All right. Ryan Browne, at the Pentagon, thanks very much.</s>BROWNE: Thank you.</s>MARQUARDT: And that does it for me. "NEWSROOM" with Brooke Baldwin starts right now.
Acting Defense Chief: We Call on Iran to Cease All Provocations.