White House legislative affairs director Marc Short is reportedly poised to depart the administration by the end of next week, just as lawmakers on Capitol Hill prepare for a fight over President Trump Donald John TrumpBiden on Trump's refusal to commit to peaceful transfer of power: 'What country are we in?' Romney: 'Unthinkable and unacceptable' to not commit to peaceful transition of power Two Louisville police officers shot amid Breonna Taylor grand jury protests MORE’s Supreme Court nominee.

Politico, citing a person familiar with Short's plans, reported Thursday that he will leave the White House by July 20. Short declined to comment to Politico on the record.

The White House did not immediately return a request for comment from The Hill.

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Short has been Trump’s top aide on Capitol Hill since the start of the administration, working with lawmakers to coordinate legislative efforts. His impending exit was first reported last month, though a firm date had not been established.

His reported departure date comes amid a brewing battle over the confirmation of Judge Brett Kavanaugh, whom Trump nominated earlier this week to replace retiring Supreme Court Justice Anthony Kennedy.

Republicans hold a razor-thin majority in the Senate, and thus cannot afford any "no" votes on Kavanaugh unless Democrats defect and vote to confirm him.

Republicans have largely rallied around the pick and praised Kavanaugh's credentials, while Democrats have framed his nomination as an affront to reproductive and health-care rights.

Prior to his work in the White House, Short was a senior aide for Vice President Pence during the 2016 campaign.

Short made frequent media appearances to defend and promote Trump’s policies, including the tax-cut bill passed late last year, the failed effort to fully repeal the Affordable Care Act and the White House’s demands on immigration.

Politico reported that Short will leave the White House to work at Guidepost Strategies, a consulting firm. He will also teach at the University of Virginia.

Short is the latest in a string of White House staffers to depart in recent months. Several communications aides have left, and chief of staff John Kelly John Francis KellyMORE is reportedly expected to vacate his post this summer.