% curl -I senate.gov HTTP/1.1 301 Moved Permanently Server: AkamaiGHost Content-Length: 0 Location: http://www.senate.gov/ Date: Tue, 17 Dec 2019 10:37:04 GMT Connection: keep-alive
% curl -I www.senate.gov HTTP/1.1 301 Moved Permanently Server: Apache Location: https://www.senate.gov/ Content-Length: 231 Content-Type: text/html; charset=iso-8859-1 Date: Tue, 17 Dec 2019 10:37:08 GMT Connection: keep-alive
It seems to meet the requirement for exclusion from the list. Data updated 16 Dec 2019, so I don't think it's stale.
I've also checked from Australian and a European connection, so I don't think it's a regional thing. The other genuis.com doesn't work for me, the other sites redirect and set a cookie.