It would seem that of @realDonaldTrump 's own last 60 Tweets, the more popular are those that are related to Iran. Top Graph is Retweets, bottom is likes, height of graphs = number. Bottom axis is date. Orange columns are tweets mentioning Iran, blue are tweets in Persian 
Red tweets don't mention Iran. One could logically deduce that from this that Trump's tweets that pertained to a possible war with Iran were more popular when war seemed more imminent. His more recent tweets (to the right) mentioning Iran are less popular. Kinda make sense
Bear in mind this is only his last 60 tweets so hard to draw big conclusions. But it makes sense that being on the brink of war brings in those sweet sweet RTs
