Removing kitchen faucet with a U shaped brace under the sink

I was trying to remove my kitchen faucet, and I couldn't figure out how to remove it with the U shaped brace/bracket under the sink.
Thanks to some tips on the net, I realize there was a hex nut holding it up there, but it is hard to see under a sink. I made a video with it uninstalled so someone with the same troubles could see what it looks like.

Видео Removing kitchen faucet with a U shaped brace under the sink канала Roger Fritz