Senator Jeff Flake called President Trump a “figure of suspicion” for his attacks on the press as John McCain called on Congress to protect journalists.
The New York legislation, which closely hews to a federal bill, would require internet companies to reveal who is paying and to show where content comes from.
President Trump, who indicated that Mr. McCain was returning home to Arizona after being hospitalized, said the senator would come back if his vote was needed.
“One of the things that gave Beau courage, my word, was John,” Mr. Biden told a tearful Ms. McCain. Her father, John McCain, has the same form of cancer that killed his son Beau.
John McCain took his “No Surrender” tour to South Carolina.
Crucial votes from Senators McCain and Murkowski have the bill poised to pass.