For example there were proposals to not allow Muslims to immigrate to the US. There was calling Mexicans 'criminals' and 'rapists'. Beating of black people at Trump rallies (which he endorsed).
This shows up this night on my twitter feed: "I am at a Trump rally in Manhattan, and thousands are chanting 'We hate Muslims, we hate blacks, we want our great country back'. Disgusting" https://twitter.com/SRowntreeNews/status/796141495573155840