It doesnt matter what "hope" means. If 45 had stopped there, and kept to verbal intimidation no biggie. That could have been excused as a mistake because he is so inexperienced that he didnt knowit was wrong. BUt then he acted on his implied threat and fired Comey. That is problematic, particularly since he proudly admitted it was because of Russia. I am sure truth will out, eventually.  As for Lynch, if she said that, she was definitely out of line. Since she recused herself, she didnt do anything illegal, and she is out of office now. If she were still in office, it would be a firing offence. 
The thing is, 45 is the leader of the country and attempted apparently to intimidate the FBI into dropping an investigation into his staff.  That needs to be addressed. Jeff Sessions needs to resign, since he has lied under oath about his meetings. It remains to be seen what 45 knew,  but eventually we will know. He may be totally innocent of collusion with the Russian , or not. We need to know