While the official government position is that there is no position on sending fighter aircraft to the Ukrainian military, Congress now has a comprehensive report on things it might consider on the topic. The U.S. Naval Institute has released a copy of a report by the Congressional Research Service that goes over the pros and cons of supplying Ukraine with fighters and the myriad logistical, financial and political considerations of doing so. The report was apparently delivered to Congress on March 17.
This is a companion discussion topic for the original entry at https://www.avweb.com/aviation-news/congress-gets-report-on-sending-fighters-to-ukraine