I TOTALLY agree that taking dowm Obama would be a VERY BAD move for Trump, because it would TOTALLY alienate a huge number of voters Trump has worked very hard to bring over to his side, and really needs to vite gor him to win the 2020 election.
But, going after Brennan, Clapper, Clinton, and all the rest of the cabal will make him a champion fighter of corruption, and thus a hero in the minds,a the majority of voters.
IF Obama goes down, it would most likely be from somebody who wants to deal Obama for a lighter sentence. Of course, that person would need to have actual evidence, not Adam Schiff level feelings. And that population would be smaller; Biden, Hillary, Holder, Jarrett, and a few others. Maybe Carlos Danger has another stash of secrets somewhere?