Donald Trump — who I suspect does these things just so he'll get mentioned on my blog — has put forth his version of George H.W. Bush's "Willie Horton" ad, blaming Democrats for being soft on crime and bullish on letting illegal alien criminals roam free to commit murders. Trump, at least, isn't doing what Bush did and pretend he had nothing to do with the race-baiting commercial. Trump seems to be proud of it.
In any case, Politifact just gave it a "pants on fire" rating as being a blatant, intentional lie. My feeling is that a lot of Trump voters won't care if it's inaccurate. They just like the idea that the guy in charge is out to nuke immigrants and will do anything, including lying, to keep them out.
I have a slowly-diminishing number of friends who support Trump. They're diminishing because some of them no longer support the guy but also because some of them are no longer my friends.