Can you think of anywhere that has happened?
IIRC, it was in Southern Calif. I did a search using “Democrats face Hispanic challengers” and found this:
http://www.nytimes.com/1984/08/16/nyregion/democrats-in-brooklyn-face-hispanic-demand.html
This is one is typical of politicians selling out:
http://www.puertorico-herald.org/issues/2001/vol5n18/CaucusMoveRollCall-en.html
There’s probably more if I use the right phrase, but I think Texas was another place where a Hispanic Democrat booted out a white one.
Karma lives.
Raul grijalva, Arizona. And now he just won’t go away. His district is like a banana republic.