The former New York City mayor has been under investigation for years by federal authorities, who have been looking into his business dealings in Ukraine.
President Trump denied culpability for the violence and expressed no regret for comments made last week that many have criticized as being a catalyst for mob violence at the U.S. Capitol.
The bar association said it received "hundreds of complaints in recent months" about Giuliani, ultimately deciding Monday to launch a "historic" inquiry into the president's attorney.
Leading up to his hospitalization, the president's personal attorney had been traveling the country on behalf of President Trump's failed legal attempts to overturn the 2020 election results.
The president has made it clear that he will spend his remaining days in the White House in the same way he spent much of his term in office: fighting.
Borat Subsequent Moviefilm, starring Sacha Baron Cohen, has become a political football during this presidential election season. A scene involving Rudy Giuliani seized social media attention.
Red flags abound in a story about Hunter Biden that provides fodder for President Trump and his allies. The allegations rest on speculation and assumptions rather than journalistically sound facts.
In an interview Tuesday with NPR, Rudy Giuliani says former Vice President Joe Biden should be investigated after President Trump's expected impeachment acquittal.
Ukraine's Internal Affairs Ministry says it's asking the FBI to help determine whether international laws were broken, or "whether it is just a bravado and a fake information" from a U.S. politician.