The former national security advisor was worried about Giuliani.
"The Divider: Trump in the White House" will be published in the fall.
According to the book, H.R. McMaster made sure he was in the Oval Office when Giuliani visited.
H.R. McMaster was concerned that Rudy Giuliani was an agent of a foreign government and made sure he was in the Oval Office whenever he visited.
An advance copy of " The Divider: Trump in the White House" was obtained by Insider.
In February and March of last year, McMaster was the national security advisor to the president. His rocky tenure was marked by a lot of spats with Trump over his capitulation to strongmen.
Steve Bannon, Trump's former chief strategist, said that although most people think he loves Putin, he is actually in love with him. The Turkish government spent millions of dollars to hire people close to Donald Trump, including his first national security advisor Michael Flynn, who was criminally investigated for working as a paid lobbyist for Turkey.
According to "The Divider," the man who succeeded Flynn as a national security advisor was so concerned about Rudy Giuliani being an influence agent for Turkish interests that he had a policy of making sure he was in the Oval Office.
Giuliani was suspected of being a foreign agent before.
Giuliani spearheaded a campaign to find dirt on the Bidens ahead of the 2020 US election. His efforts came under scrutiny by prosecutors as they began to look into whether he broke foreign lobbying laws.
The Manhattan US attorney's office wanted to know if Giuliani's efforts in Ukraine were carried out solely in his capacity as Trump's lawyer or if he was also working for foreign interests who hoped to benefit from Trump's reelection.
FBI agents raided Giuliani's apartment, office, and home in April of 2021. They took 18 of Giuliani's electronic devices, as well as devices belonging to his personal assistant.
The New York Times reported in August that the feds recently returned Giuliani's devices to him, a sign that he's unlikely to be charged with a crime.
Giuliani's legal problems are not over. Georgia state prosecutors informed the former New York mayor that he's a target of a wide-ranging criminal investigation into Trump allies' attempts to overturn the 2020 election results in Georgia, one of seven battleground states that pushed Biden to victory.
Giuliani appeared before a grand jury in August.
Business Insider has an article on it.