Peter Strzok, the former FBI counterintelligence agent who was fired last year over text messages critical of Donald Trump, is suing the government to get his job back.

In a lawsuit filed Tuesday in Washington, Strzok argued his firing last year was prompted by “unrelenting pressure” from President Donald Trump and his political allies. Strzok accused the administration of mounting a campaign to “demonize and fire” him and alleged he was denied an opportunity to challenge his firing, which came within days of a top FBI official recommending a lighter punishment.

Strzok is represented by Zuckerman Spaeder white-collar partner Aitan Goelman, a former Obama-era director of enforcement at the U.S. Commodity Futures Trading Commission. Richard Salzman and Julia Quinn of the Washington employment and civil rights boutique Heller, Huron, Chertkof & Salzman were also on the complaint for Strzok.

“The campaign to fire Strzok included constant tweets and other disparaging statements by the president, as well as direct appeals from the president to thenAttorney General Jefferson Sessions and FBI Director Christopher Wray to fire Strzok, which were chronicled in the press,” Strzok lawyers said in the complaint.

During his tenure at the FBI, Strzok helped oversee investigations into Hillary Clinton’s use of a private email server and into links between Russia and the Trump campaign. In 2017, he found himself in a political firestorm following the disclosure of text messages he’d exchanged during the presidential campaign with Lisa Page, then an FBI lawyer, in which the two sharply criticized Trump. Robert Mueller removed him from the special counsel’s office over the texts.

Strzok raised questions about the public release of his messages with Page. The “concerted public campaign” against him, Strzok argued,  “was enabled by the defendants’ deliberate and unlawful disclosure to the media of texts, intended to be private, from an FBI systems of records, in violation of the Privacy Act.”

Strzok’s complaint is posted below: