The IRS disallowing political organizations to apply for 501c4 status is doing what they are supposed to do, and they stopped left-wing organizations as well as right-wing ones (though there were more right-wing ones stopped because more right-wing ones tried that tactic).
Don't kid yourself. Donald is the king of petty. Tweeting about ratings for his stupid reality show? Petty. Not presidential. Tweeting about a restaurant critic? Petty. Not presidential. Tweeting to call a senator a clown? Petty. Not presidential.
Absolutely nothing in your post is true.
At the time of the controversy, there were over 300 conservative organizations held up, compared to 3 liberal organizations. The filters used to flag these organizations were all conservative buzzwords.
I would rather have a president who tweets his displeasure than one who uses the government to attack anyone who disagrees with him.
Obama will go down in history as the worst president ever, and it will be well deserved.