https://www.foxnews.com/us/obama-warned-trump-against-hiring-flynn-before-inauguration

Obama only warned Trump about 2 people: Kim Jong Un and Michael Flynn.

2 months later, he was in the oval office plotting with Biden and others to use the Logan Act to get him despite Comey saying his conversations "appear legit."

Also:

8/1-8/10/16- Steele adds reports for Manafort, Popadoplous, Page

8/8/16- (Page) “[Trump’s] not ever going to become president, right? Right?!”

(Strzok)“No. No he won’t. We’ll stop it,” 

8/10/16- FBI opens cases on Manafort, Popadopolous, Page

8/10/16- Steele submits only report for Dossier with Flynn in it.

8/15/16- (Strzok)I want to believe the path you threw out for consideration in Andy’s office that there’s no way he gets elected—but I’m afraid we can’t take that risk. It’s like an insurance policy in the unlikely event you die before you’re 40 …

8/16/16- FBI opens case on Flynn

8/17/16- Joe Pientka sits in on Trump ODNI briefing because Flynn present (Pientka was with Strzok in Flynn's infamous "interview)