The USS Liberty incident has been raised frequently, there are dozens of threads here about it. If someone advocates ending our relationship with Israel about it, so be it. Most people have worked the issue out.
I haven’t heard or seen the USS Liberty matter raised on political talk shows or in any publications that I’ve read in I can’t even remember how long, so I don’t know what sources are mentioning it that you’re hearing/seeing, unless you just meant that it’s been raised on FR frequently.
Do you advocate ending our relationship with Israel (for whatever reason)?