Jennifer Rubin: What did the president know and when did he know it?

Video: White House press secretary Sarah Sanders, and hosts and guests on cable news shows reacted to the indictment of longtime Trump adviser Roger Stone on Jan. 25. (Allie Caren,Adriana Usero/The Washington Post)
For two years now we’ve heard, “No collusion!” and “Witch hunt!” Such disparagement of special counsel Robert Mueller’s work was never viable (e.g. we knew about the Trump Tower meeting in June 2016 for well over a year); now it’s simply wrong