Monday was marked by the rolling train wreck that was former Trump campaign aide Sam Nunberg’s seemingly non-stop appearances on cable news shows taunting Special Counsel Robert Mueller for subpoenaing him. During his wild interviews (which lasted from mid-afternoon into the night), Nunberg made numerous suggestions that federal investigators may have some kind of case against President Trump. And that was all the liberal network news outlets needed to run with it. Both CBS Evening News and ABC’s World News Tonight kicked off their programs with the jaw-dropping spectacle. On CBS, anchor Jeff Glor even announced that they were pushing back...