Center for AI Safety Action Fund — campaign: Submitted 15 proposals to congressional offices for adding AI safety measures to defense and general funding bills

Note: The source URL points to a newsletter about lobbying on AI regulation, which is topically relevant to the claim. However, the actual text excerpt provided does not contain any information about the Center for AI Safety Action Fund's campaign, the number of proposals submitted, or details about congressional offices and defense/general funding bills. Without access to the full content of the newsletter, the specific claim cannot be verified or contradicted based on the excerpt alone.