Rudolph W. Giuliani, who was in the center of the impeachment storm earlier this year as an unpaid private attorney for President Trump, has cast himself in a new role: as personal science adviser to a president eager to find ways to short circuit the coronavirus epidemic.

In one-on-one phone calls with Trump, Giuliani said, he has been touting the use of an anti-malarial drug cocktail that has shown some early promise in treating covid-19, but whose effectiveness has not yet been proved. He said he now spends his days on the phone with doctors, coronavirus patients and hospital executives promoting the treatment, which Trump has also publicly lauded…

“​He’s been out of the news and out of the limelight since the end of the impeachment drama,” said Andrew Kirtzman, a Giuliani biographer who is currently writing his second book about the former New York mayor. “What you’re seeing is an effort to regain relevance.”…

Giuliani said that he has not discussed the treatment with Fauci, but said that Trump agrees with him. “I’m sure he thinks I am an ignoramus,” he said of Fauci.