A heated confrontation erupted in the U.S. Senate as Sen. Rand Paul defended his decision to remove Dr. Anthony Fauci's attorney from a committee hearing, prompting sharp criticism from Sen. Richard Blumenthal.

Dr. Anthony Fauci appeared before a Senate committee Wednesday morning, days after Sen. Rand Paul, R-Ky., released more than 1,000 pages of his diaries.

Dr. Anthony Fauci appeared before a Senate committee Wednesday morning, days after Sen. Rand Paul, R-Ky., released more than 1,000 pages of his diaries.

One of Dr. Anthony Fauci's lawyers was removed from the Senate homeland security committee hearing after failing to remain silent.