Will Not Rent to Trump Supporter

A Colorado landlord with an apartment available for rent is making one thing perfectly clear: Dogs are welcome, Donald Trump supporters are not.
Mark Holmes rents out the downstairs portion of his home, and posted an ad in the local paper that reads, "DOWNTOWN APARTMENT, 2 bedrooms, furnished or use your things, organic garden space, hot tub, great back yard, dogs allowed if they have references as good as yours. If voting for Donald Trump, do not call!"