I have known several presidents quite well, including my husband, and I worked closely with President George W. Bush and the White House then after 9/11, and I served with President Obama. I disagree with all three of those presidents on certain things.
I learned to be far more skeptical of what I'm told by presidents, no matter who the presidents are, and also to be much more cautious, always, in any action or vote that could lead to the use of American military power and most particularly what we call 'boots on the ground.'