Committee votes to send Biden defense pick to Senate floor
New GOP bills aim to thwart admin's 'maximum concession campaign'
Hagerty demands details on efforts to provide Tehran with sanctions relief
Legislation would bar federal funds from being used to renegotiate with Iran
Current efforts could 'ignite a massive nuclear arms race'
Rep. Manning: JCPOA is 'outdated'
Malley's powwows with China about Iran deal hint at Biden admin divisions on diplomacy