If you look at Fred's tweets, you can see that he's absolutely spittle-spewing full of hatred for Trump. What the heck did Trump have to do with Fred's daughter getting shot and killed? Seems to me the previous president was more responsible, considering his administration ensured that the school district couldn't do anything about that whackjob homicial Cruz kid.
Because to the purple faced, spittle flecked leftist the world is all politics.
Ergo the leader of the opposing party is responsible not only for leading the opposition against all your favorite legislation you were depending upon to make everyone else do what you want them to do, but also the black plague, pestilence, herpes, tornados, termites, bunions, your teams lousy batting average, you name it.