The White House is expected to add a pair of aides tasked with leading its impeachment communications team as the House prepares to go public with its inquiry into President Trump Donald John TrumpFederal prosecutor speaks out, says Barr 'has brought shame' on Justice Dept. Former Pence aide: White House staffers discussed Trump refusing to leave office Progressive group buys domain name of Trump's No. 1 Supreme Court pick MORE.

Two officials confirmed to The Hill that former Florida Attorney General Pam Bondi and former Treasury spokesman Tony Sayegh will join the White House communications staff "to work on proactive impeachment messaging and other special projects as they arise."

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Their roles will be temporary and they will be designated as special government employees, according to a senior administration official.

The announcement comes the same day House Democrats unveiled the schedule for their first public hearings in the impeachment inquiry into Trump, with hearings scheduled for next Wednesday and Friday.

The White House has at times struggled to coalesce around a unified messaging strategy on impeachment, something that has been a point of concern for Republican allies in Congress. The mercurial Trump has largely steered the defense strategy thus far with his own brash public statements, insistence he did nothing wrong and refusal to cooperate with investigations.

Sayegh previously worked as a Republican strategist before joining the Trump administration. He served as a spokesman for Treasury Secretary Steven Mnuchin Steven Terner MnuchinThe Hill's Morning Report - Sponsored by Facebook - Republicans lawmakers rebuke Trump on election On The Money: Anxious Democrats push for vote on COVID-19 aid | Pelosi, Mnuchin ready to restart talks | Weekly jobless claims increase | Senate treads close to shutdown deadline Vulnerable Democrats tell Pelosi COVID-19 compromise 'essential' MORE and led messaging efforts for the White House's tax cut push.

Bondi served as Florida's attorney general from 2011 to 2019, and Trump's foundation made a much-scrutinized donation in support of her reelection campaign in 2013. She has remained an outspoken supporter of the president since.

The president last month dismissed the need for a full-fledged team to defend him against impeachment, telling reporters, "I'm the team." But Wednesday's staffing announcement indicates the White House is taking the process more seriously as it moves into a public phase.

House Intelligence Committee Chairman Adam Schiff Adam Bennett SchiffSchiff to subpoena top DHS official, alleges whistleblower deposition is being stonewalled Schiff claims DHS is blocking whistleblower's access to records before testimony GOP lawmakers distance themselves from Trump comments on transfer of power MORE (D-Calif.) said earlier Wednesday that lawmakers initially plan to call in three witnesses next week to build their case publicly that Trump abused his office by pressuring a foreign power to investigate his domestic political opponents.

Schiff said that William Taylor, the top U.S. diplomat to Ukraine, and George Kent, a top State Department official, will testify next Wednesday. Former U.S. Ambassador to Ukraine Marie Yovanovitch is then expected to testify next Friday.

House Democrats have in recent days released transcripts of closed-door testimony from Taylor, Yovanovitch, former U.S. special envoy to Ukraine Kurt Volker Kurt VolkerGOP senators request details on Hunter Biden's travel for probe Yovanovitch retires from State Department: reports Live coverage: Senators enter second day of questions in impeachment trial MORE, Ambassador to the European Union Gordon Sondland and former top State Department aide Michael McKinley.

Each of the transcripts have portrayed the president's personal attorney, Rudy Giuliani Rudy GiulianiThe Hill's Campaign Report: GOP set to ask SCOTUS to limit mail-in voting CIA found Putin 'probably directing' campaign against Biden: report Democrats fear Russia interference could spoil bid to retake Senate MORE, as serving as a second channel to pursue the president's interests in Ukraine and shown officials raising various concerns about the desire for Ukrainian officials to publicly commit to investigating the 2016 election.

Sondland in updated testimony said that he presumed aid for Ukraine was contingent on the country publicly announcing investigations that Trump wanted.

White House aides have remained adamant that the president did nothing wrong and insisted there was no explicit quid pro quo. But both press secretary Stephanie Grisham Stephanie GrishamIvana Trump on Melania as first lady: 'She's very quiet, and she really doesn't go to too many places' The Hill's 12:30 Report: Trump uses White House as campaign backdrop Coronavirus tests not required for all Melania Trump speech attendees: report MORE and White House counselor Kellyanne Conway Kellyanne Elizabeth ConwaySpecial counsel investigating DeVos for potential Hatch Act violation: report George and Kellyanne Conway honor Ginsburg Trump carries on with rally, unaware of Ginsburg's death MORE have in recent weeks acknowledged that they expect the House to move forward with impeachment.