I am going to have to say I don't care for this Tweet. Don't get me wrong, I don't agree with what The Red Hen did at all. That said, they are a small business owned by American citizens, and they have the legal right to refuse service. I don't feel it's appropriate for the President to call them out. Him calling them out and whether or not it's appropriate will be the story in the news all day now. Instead, the story in the news prior to that was that she was kicked out. The Democrats were trying to defend it on TV and online which was harmful to them. Conservatives were on TV and online sticking up for her. Conservatives would vote with their wallets. They were the proper surrogates for him.
If the converse happened and a conservative kicked out Obama's Press Secretary, of course the media would be up in arms about it, but I think we wouldn't like it if Obama called it out.