Sen. Ted Cruz and U.S. Attorney General Eric Holder exchanged heated words over the hypothetical use of drone strikes in the United States. The grilling came during a Senate Judiciary Committee hearing in Washington today.

Senate Republicans have been pressuring the White House to provide information used by the Justice Department to justify the use of lethal drone strikes against terror suspects overseas. Today, the focus was on the possibility that the military might use drone technology to target suspects on American soil.

In a letter to Sen. Rand Paul earlier this week, Holder said the military has never carried out a drone strike on U.S. soil and has “no intention of doing so.” Holder stopped short, however, of ruling out the possibility. He pointed out that a president might be prompted to take such action in an extraordinary circumstance like the Pearl Harbor or September 11th attacks.

During testimony today, Sen. Cruz pressed Holder on the issue. He posed a hypothetical question to the Attorney General: “If an individual is sitting quietly at a cafe in the United States, in your legal judgement does the constitution allow a U.S. citizen on U.S. soil to be killed by a drone?”

You can view Holder’s response and the full exchange in the video below: