Racist, imperialist nutjob.
He was no more racist than anyone else of his time, aside from Wilson and his ilk. Judging people by modern standards is terrible.
He was actually quite a bit less racist than the norm of the day against both blacks and Asians. He invited George Washington Carver to the White House, which really sent the racists into a tizzy, and he made sure the San Francisco schools integrated, at least the white and Asian. Not perfect on racial issues, but much better than most of his contemporaries.