At a rally in Alabama, Donald Trump mocked Serge Kovaleski, a disabled New York Times reporter. After repeating false claims that thousands of people cheered as the towers of the World Trade Center collapsed, Trump did an impression of Kovaleski retracting a story which Trump claimed corroborated his version of events. (It does not.)
Kovaleski suffers from arthrogryposis, a chronic condition that impairs the movement of his arms.
Trump later claimed that he was imitating “somebody that was groveling.”