Several key Latin American supporters of Donald Trump's presidential campaign are reportedly considering their withdrawal after the Republican nominee's tough immigration speech in Arizona on Wednesday.

Jacob Monty, a Houston lawyer and key proponent of the Latino case for Trump, resigned from Mr Trump’s National Hispanic Advisory Council following the Republican presidential hopeful’s remarks in Phoenix, Arizona.

Mr Monty said: “I was a strong supporter of Donald Trump when I believed he was going to address the immigration problem realistically and compassionately”.

“What I heard today was not realistic and not compassionate.”

Another important Hispanic supporter of Mr Trump, Alfonso Aguilar, president of the Latino Partnership for Conservative Principles has also said that he is “inclined” to withdraw his support.