According to The Atlantic, Sims "broke high-profile state politics stories," including a series of investigative pieces that ultimately led to the resignation of Alabama Governor Robert Bentley.

"[13] He was also a "key figure" in the administration's successful efforts to pass the Tax Cuts and Jobs Act of 2017,[12] regarded as Trump's signature legislative achievement.

"[15] In January 2019, St. Martin's Press published Sims's memoir, Team of Vipers: My 500 Extraordinary Days in the Trump White House, which spent several weeks on the bestseller list.

[16] Publishers Weekly wrote that "Sims's vivid portrait of Trump shrewdly balances admiration with misgivings, and his intricate, engrossing accounts of White House vendettas and power plays have a good mix of immersion and perspective.

[22] The lawsuits were later dropped and Trump tapped Sims to lead messaging and speechwriting for the 2020 Republican National Convention, including personally writing remarks for the president's children.

"[26] Sims was named chief executive officer of Telegraph Creative, a corporate marketing, advertising and branding firm based in Birmingham, Alabama.

The Birmingham News reported that Telegraph Creative received "a federally funded contract worth just under $1 million" with the Alabama Department of Early Childhood Education.