Dear Mr. President,
Since I am an American citizen, you are my President, whether I voted for you or not, whether I agree with your policies or not, whether I agree with the direction you wish to set for this country or not. If I want to be able to attend a speech by you, and I can get a ticket, I should be able to do just that. It distresses me, as an American citizen, that apparently those who work for you disagree.
(link via Oliver Willis)