Donald Trump may have violated another federal law after reports that he and Russian President Vladimir Putin allegedly continued to communicate after the former president left office, attorney and legal analyst Glenn Kirschner said Saturday.

Journalist Bob Woodward’s new book is called Warclaims that Trump, the Republican Party’s presidential candidate, and Putin have had as many as seven phone calls since the start of 2021 and that the former president asked an aide to leave the room so they could speak.

The book, obtained by CNN ahead of its Oct. 15 publication, is based on hundreds of hours of firsthand interviews and highlights newly reported details of high-stakes confrontations during the Trump and Joe Biden presidencies.

Responding to the revelations, Trump’s communications director Steven Cheung said Tuesday morning Newsweek via email that Woodward’s book belonged in a ‘bargain bin’.

“None of these made-up stories by Bob Woodward are true and are the work of a truly demented and disturbed man suffering from a debilitating form of Trump Derangement Syndrome,” Cheung said.

Kremlin spokesman Dmitry Peskov also told Bloomberg in a written statement on Wednesday that although Trump had sent Putin COVID-19 testing equipment in 2020, which was another accusation in Woodward’s book, he denied the report about the two men’s phone calls .

When asked about the alleged shipment of COVID-19 tests to Russia, Trump told ABC News on Wednesday that the claim was “false.”

Kirschner, a former assistant U.S. attorney and frequent Trump critic, spoke in a YouTube video Saturday about the reported calls and whether they violate the Logan Act, a federal law that bars citizens from engaging in diplomacy without authorization deal with foreign governments that are in dispute with the US

“A violation of the Logan Act carries a maximum of three years in prison. So yeah, we all want to know: Did Donald Trump violate the Logan Act? And here is the answer. Maybe,” Kirschner said.

He added: “And the reason I have to put it that way is because what we know based on Bob Woodward’s new blockbuster reporting… there are reports that Donald Trump has had as many as seven phone calls, private phone calls with Vladimir Putin. This is the sticking point right now: the devil in the details, which we have no reporting on, is exactly what those phone calls entail.”

Kirschner said that “based on the evidence reported, there is sufficient evidence of possible criminality that the FBI can and should open an investigation into the nature of these calls.”

Newsweek has reached out to Trump’s spokesperson for comment via email.

Kirschner is not the first to speak out about whether Trump violated the Logan Act. According to Axios, a spokesperson for Vice President Kamala Harris’ campaign said Tuesday that Trump’s involvement in diplomacy outside the government could be illegal under the Logan Act — a view also echoed by former Biden White House adviser Susan Rice on X, formerly Twitter, on Wednesdays.

“Additionally, this appears to be a violation of the Logan Act. Exactly what Trump falsely accused John Kerry of. Another clear crime by Trump,” she wrote.

In 2019, Trump accused Kerry, President Barack Obama’s former secretary of state, of violating the Logan Act for allegedly participating in negotiations with Iran, including private meetings with Iranian officials during the Trump administration, to urge Tehran insist on adhering to the Iran Nuclear Deal that had been achieved. by the Obama administration. Kerry has denied all allegations of wrongdoing and has never been charged.

Despite calls that Trump may have violated the 1799 Logan Act, the law is rarely enforced, according to a 2018 report from the Congressional Research Service.

There have been only two prosecutions under the Logan Act, in 1803 and 1853, neither of which resulted in a conviction. In addition, the law has rarely been used due to questions about its constitutionality, including whether it conflicts with protections of freedom of expression, the report said.