WASHINGTON, April 1 -- Sen. Mark R. Warner issued the following press release:

U.S. Sen. Mark R. Warner (D-VA), Vice Chairman of the Senate Select Committee on Intelligence, issued the following statement:

"For more than seventy years, NATO has been the cornerstone of American national security - deterring war in Europe, projecting strength around the world, and ensuring that the United States never stands alone in moments of crisis. It is not a 'paper tiger' - it is the most successful military alliance in modern history, and Donald Trump's threat to pull the United States out of NATO is reckless, dangerous, and plays directly into the hands of our adversaries.

"Alliances are not transactional. They are built on trust, shared values, an...