The violent and vulgar rhetoric at Donald Trump’s Madison Square Garden rally Sunday has prompted finger-pointing within the former president’s inner circle and deep concern that his message was once again eclipsed by controversy.

It remains to be seen how Puerto Rican voters will respond to Trump's rally, but Republicans were quick to condemn the comedian's remarks.

Trump's 2016 presidential opponent, Democrat Hillary Clinton, has accused him of "re-enacting" a pro-Nazi rally that was held at Madison Square Garden in 1939 on the eve of World War Two. Trump’s critics have long accused him of empowering white supremacists with dehumanizing and racist rhetoric.