I get paid to parse words, phrases, sentences. It's entirely possible that I could have supported someone who campaigned on making America great.
I have a problem with "again". The phrase clearly means that we've left something behind. That something we USED TO DO is now gone, and bringing it back would "make America GREAT".
I'm not going to trot through all of the shameful things in America's past; slavery, the war in Iraq, the Citizens United decision come to mind, but there are so many...
Somebody, anybody, tell me what is now gone that bringing it back will lead to a "great America".
Bonus points if you remember to show how bringing whatever it is that's now gone will "make America great".