I heard some guy from Baltimore gave an interview and that while he usually disagrees with Trump, he can't that Trump is wrong. He also said that he didn't really like Cummings either, but couldn't put all the blame on him.
To be fair, most large cities have a rat problem. On Orkin's top 10 rattiest city list is Chicago, LA, NY, DC, San Francisco, Detroit, Philadelphia, Cleveland, Baltimore and Denver. Trump's comments are accurate. He may be a dick, but he's not racist.