Boston, November 27 (RHC)-- U.S. presidential candidate Donald Trump's continued campaign of controversy has drawn more criticism. An advocacy group has offered Trump sensitivity training after the Republican presidential hopeful mocked a New York Times reporter with a disability.

Jay Ruderman of the Ruderman Family Foundation in Boston said on Thursday Trump should apologize to the U.S. public and the New York Times. The newspaper expressed outrage over Trump's mocking of its reporter.

In a speech in South Carolina on Tuesday, Trump cited a 2001 article by reporter Serge Kovaleski to defend his controversial claim that Arab Muslims in New Jersey cheered as the World Trade Center collapsed on September 11, 2001 in New York. Kovaleski has a congenital condition that affects joint movement.

Trump imitated the reporter's movements as he was challenging recollections by the reporter and many others about the 9/11 aftermath. A spokeswoman for The New York Times said that it is "outrageous that he would ridicule the appearance of one of our reporters."

Trump provoked a controversy by making repeated claims that he saw thousands of Arab Muslims in New Jersey cheering the fall of the Twin Towers on September 11, 2001. Trump first said on Saturday that Arab people cheered on 9/11 speaking at a rally in Birmingham, Alabama.