Dr. Colin Kahl, the No. 3 official at the Pentagon was asked during a hearing by Rep. Ro Khanna (D-CA) how many more rounds of aid the Biden administration expects to request for Ukraine.

Source: https://www.breitbart.com/politics/2023/03/01/biden-pentagon-official-says-its-not-clear-how-much-taxpayer-aid-will-be-needed-for-ukraine/

Under Secretary of Defense for Policy Colin Kahl made the comment to a House of Representatives hearing when pressed by a Republican lawmaker why the Biden administration had sought to revive the deal, the Joint Comprehensive Plan of Action (JCPOA).

Source: https://www.msnbc.com/rachel-maddow-show/maddowblog/scope-trumps-failed-iran-policy-comes-sharper-focus-rcna72927

Undersecretary of defense for policy Colin Kahl reporter that "The Abrams tank is very complicated.

Source: https://original.antiwar.com/ted_snider/2023/01/29/us-is-sending-tanks-to-ukraine-but-why/