Presidential historian Meacham explains why Trump has joined Andrew Johnson as most racist president in American history

“We don’t build monuments to people who close doors,” Meacham told Hardball's Scarbory. Telling AOC, Omar, Pressley and Tlaib they should return to the countries they came from is not only racist; it is ignorant of the fact that all 4 are US citizens. Somali-born Omar is the only one who was born outside the US; she has been a naturalized U.S. citizen since 2000. The other 3 were born in the U.S. (AOC in the Bronx, Pressley in Cincinnati, Tlaib in Detroit) and have been U.S. citizens their entire lives. AOC’s parents are from Puerto Rico, but she is a native New Yorker — and although she speaks Spanish, English is her native language.

Scarborough agreed with Meacham’s comments but was even more biting in his criticism of Trump, saying, “This is not a dog whistle — it is a bullhorn to Donald Trump’s most bigoted, racist supporters…. This is David Duke racism.”