[5][6] He was initially announced as the incoming White House Communications Director during the presidential transition, though he withdrew shortly after amidst news of an extramarital relationship with a staffer who joined the 2016 campaign two months before the election.

[7] In 2017, he became a contributor on CNN,[8] but left the position in 2018 amidst unsubstantiated allegations reported by Gizmodo including spiking an erotic dancer's drink with abortion medication.

[11] Miller left his position as Trump's spokesman in June 2021 to become the CEO of Gettr, a micro-blogging social network with a conservative user base.

[19] After graduating from college, Miller moved to San Diego, California, where he spent most of the next year as coalitions director for businessman Darrell Issa who unsuccessfully sought the U.S. Senate nomination in the 1998 primary.

[22] However, Ryan chose to end his candidacy abruptly after a judge in California ordered the unsealing of the Republican candidate's custody file, over the objections of both parents, creating a public furor.

[24] Miller then moved to Florida, where he served as political and communications consultant for the successful primary campaign of Mel Martínez for U.S. Senate, against several well-known contenders.

[20] In January 2005, Miller was hired to manage the re-election campaign of Virginia senator George F. Allen, widely tapped as a leading contender for the 2008 Republican presidential nomination.

[27] After the campaign, Miller took a job with the State of South Carolina, doing strategic planning for the governor,[28] also serving as Deputy Chief of Staff.

[29] National politics beckoned in April 2007, when Miller moved to New York and joined the Rudy Giuliani 2008 presidential campaign as Deputy Communications Director.

[30] Giuliani ended his campaign prior to Super Tuesday, after finishing third behind eventual nominee John McCain in the Florida primary.

They did work for the Club for Growth PAC, which used Jamestown to help challenge a GOP incumbent in Mississippi and nominate a Tea Party conservative in Nebraska.

In 2013, Miller returned to South Carolina as ad producer and strategist[33] for Mark Sanford's comeback campaign for U.S. House, following the former Governor's scandalous affair with an Argentinian journalist and subsequent divorce.

[34] Despite being actively shunned by national party committees and major donors, Sanford won the GOP nomination with 56.5%,[35] and then captured the coastal 1st District seat with 54% in the May special election.

[37] Bevin, who had lost his challenge to Senate Majority Leader Mitch McConnell a year earlier, was the surprise winner of a three-way race for the gubernatorial nomination in May—a victory attributed in part to a closing ad by Miller and Jamestown, "Food Fight.

[40] The Washington Post's Katie Zezima wrote that Miller's challenge was "crafting Cruz's message of unyielding conservatism and spreading it among grassroots groups, where the senator hopes to gain the most support”.

In the role of Trump adviser, Miller had criticized Teneo as a "corporate consultancy" created by Doug Band "to trade off the influence and power gained through the affiliation with [Hillary Clinton].

[57] Spencer Cox, then-Lieutenant Governor of Utah and himself a Republican, stated on Twitter that people should "ignore this type of garbage," referring to Miller's remarks.

In his exchange with Stephanopoulos, Miller did not dispute or even address the use of mail-in ballots, and he did not claim that vote counts were typically finalized or certified on election night.

On July 1, 2021, he launched a beta version of the social network Gettr, which is targeted at conservatives and which Miller has described as a "place people won't be canceled".

"[61] In February 2023, Miller left his role as CEO of Gettr in order to work as senior adviser for Donald Trump's 2024 presidential campaign.

Miller had said he was working hard to become a "better husband and father" and took his parental obligations "very seriously", and that Ms. Delgado had "turned a simple paternity proceeding into all-out war".

[65] Miller questioned the propriety of publishing that unverified claim (from what was then a sealed Florida court filing and was denied by the alleged mistress), causing damage to his reputation.

[68][69] Miller later brought another suit in Florida, which ended in August 2019 when the court granted Gizmodo's motion for summary judgment, as had occurred in the New York case.

[75][76][77] In September 2021, Miller and other American right-wing media personalities in his traveling party were detained and questioned for three hours at the international airport in Brasília, Brazil, before returning to the U.S. following participation in a CPAC Brasil Conference.

The investigation was part of an inquiry by Brazilian Supreme Court Justice Alexandre de Moraes into misinformation allegedly perpetuated by the administration of President Jair Bolsonaro.

And at some point in the conversation Matt Oczkowski, who was the lead data person, was brought on, and I remember he delivered to the President in pretty blunt terms that he was going to lose [the election].