Not much of an answer, since you don't say what this context is.
But fine, I'll tell you. First, let's review the text of the tweets in question (combined here for simplicity):
So interesting to see “Progressive” Democrat Congresswomen, who originally came from countries whose governments are a complete and total catastrophe, the worst, most corrupt and inept anywhe
snip
Let's list the qualities Trump mentions:
1) Democrat Congresswomen
2) originally came from countries whose governments are a complete and total catastrophe
3) loudly and viciously telling the people of the United States... how our government is to be run
Who fits that description? People have claimed that he's referring to "the squad". And all four members of "the squad" fit items 1 and 3. But what about item 2?
Well, really only Ilhan Omar fits. She was born in Somalia, whose government is a disaster.