I don't know why,but I honestly expected better from Katy Perry.
No,I didn't expect her to come out and announce she was a Trump supporter,but I honestly thought she had the character and the intelligence to be one,but remain quiet about it to protect her career.
Look at Dolly Parton,for example. Granted,she might keep quiet because revealing her sex life would have killed her career in previous times,and might even do it now,but she is a VERY smart business woman that kept her private business to herself and never got involved in anyone else's.