White House: Imagine Our Progress if Senators Like Corker Did Their Job Instead of ‘Grandstanding on TV’

White House press secretary Sarah Huckabee Sanders said Tuesday President Donald Trump had accomplished "historic" things without Congress and could only "imagine how many good things" would happen if senators like Bob Corker did their job rather than "grandstanding" on television.

The majority of questions Sanders took at her briefing concerned the extraordinary day of intra-Republican Party conflict between Trump and Sens. Corker (Tenn.) and Jeff Flake (Ariz.).

NBC reporter Hallie Jackson discussed Trump's stalled legislative agenda and, noting that tax reform had not been completed yet and would likely need Corker's support, asked Sanders if Trump felt like he was "winning."

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"I think he feels like America's winning," Sanders said, reeling off a list of what she considered Trump achievements in the first nine months such as deregulation, a "booming economy," the coming defeat of the Islamic State terrorist group, a bolstered relationship with NATO, and a "historic" trip to Saudi Arabia to address counterterrorism in Muslim majority countries.

"These are historic things that he's done without Congress. Imagine how incredible and how many good things we would be doing if people like Senator Bob Corker got on board and started doing their job instead of doing so much grandstanding on TV," she said.

Trump renewed his Twitter war against Corker (R.) on Tuesday, saying he couldn't get elected "dog catcher" in Tennessee and was standing in the way of potential tax cuts.

Corker, who recently announced he isn't running for reelection to his seat next year, called Trump "utterly untruthful" and has referred to the White House as an "adult day care center."

Later on Tuesday, Flake announced he too would not seek another term in office next year, citing the toxic culture within the party under Trump as his reasoning.