Trump launched his 2016 presidential campaign by characterizing Mexican immigrants as rapists and murderers.
He also claimed that Jeb Bush has to like Mexican illegals because of his wife, and in a Tweet said that Bush spoke "Mexican."
During an Iowa press conference, Trump kicked out Jorge Ramos for speaking out of turn, telling him to "Go back to Univision."
The source below is a good summary of these and other items.
(1) Carolina Moreno, "9 Outrageous Things Donald Trump Has Said About Latinos," Huffington post, August 41, 2015, http://www.huffingtonpost.com/entry/9-outrageous-things-donald-trump-has-said-about-latinos_55e483a1e4b0c818f618904b
If you have suggested corrections or additions, you can direct message @jhowiejr on Twitter.