WASHINGTON, Aug. 4 -- Sen. Mark R. Warner issued the following press release:

WASHINGTON - U.S. Sen. Mark R. Warner (D-VA), Vice Chair of the Senate Select Committee on Intelligence, joined four Senate Democratic colleagues in pressing the Trump administration for answers about its unpredictable oversight of frontier artificial intelligence (AI) models and its opaque standards for evaluating a model's national security risk. Theletterfollows the Trump administration's recent haphazard responses to frontier models fromAnthropicandOpenAI, and comes as basic questions surround the implementation of Executive Order 14409, the White House's voluntary pre-release review framework for frontier models.

In addition to Sen. Warner, the letter was s...