hey I can download c-span videos now:

https://www.c-span.org/video/?c4477570/user-clip-hillary-clinton-mishpucka

https://github.com/ytdl-org/youtube-dl/blob/master/README.md

install youtube-dl:

sudo curl -L https://yt-dl.org/downloads/latest/youtube-dl -o /usr/local/bin/youtube-dl

sudo chmod a rx /usr/local/bin/youtube-dl

download video:

python3 $(which youtube-dl) https://www.c-span.org/video/?c4477570/user-clip-hillary-clinton-mishpucka