Yes, I would say so, but I would always be candid and verbalize why you support the President or it will, affect how others see you and possibly in a negative light.
If you proudly say you support the President do you want people to reason that you may also lie or you do not think there is anything wrong with having extramarital affairs when you are married? People may not trust you knowing that you support the President 100%. None of us agree 100% with another person, but in this political climate it is important to acknowledge why.
I think if you are being honest, you will understand it is because of one or maybe two decisions or issues that you agree with the President on. In this way you are stating I do not agree or support him 100%. You understand that some of what he advocates is wrong..
We may be in a time when a few issues are driving the electorate.