I did the same thing in our local and State elections. I voted by AMERICAN conscience! I even voted for several Democrats since the Republican candidates were crooked as Hell.
I would never go THAT far. Though I did vote for Bernie in the California primary. The Donald had it wrapped up and I decided to use my vote for good and try to stab crooked Hillary in the heart.
My theory is, even the worst Republican is better than any Democrat. John McCain may be the exception to the rule.