Matter of perception. Those that dispise him heard what they wanted to hear. He didn't say they should build their which would be an endorsement. He said they had a right to build there which is their constitutional right. That is a huge difference that is easily recognizable to anyone being logical and reasonable.
judging by the applause he received from the muslim audience, imo they felt like he was giving an endorsement.
if you're going to speak at all about the mosque, why only choose to talk about the constitutionality of it (which no one is arguing?) if that's all you're going to say, you have to realize people are going to take that as an endorsement. i think his advisors realized that, that's why he made the comments he did on saturday.
If he were speaking to a Christian audience and said they had a constitutional right to build a church wherever they desired, do you think they wouldn't applaud too? Do you honestly think any president in his right mind would wade into whether Christians or Muslims should build in a particular location or not? If they speak to it at all, it should be to the constitutional legality of it. Can you imagine a president saying, "constitutionally, a negro can drink from the same water fountain as a black man.......but it is just so unseemly that he shouldn't." A president is the president of ALL Americans and he takes an oath to defend the Constitution. My point in the threads I've participated in is that while we might have emotional reasons why we think someone shouldn't do something, it boils down to whether or not they have a Constitutional right. We can't just pay lip service. We either follow it all the time or it is meaningless. We don't suspend our defense of it when we don't personally like something. That isn't left or right, that is just being a patriotic American.
You can say that no one is arguing whether it is Constitutional or not.......but at the end of the day, that is the ultimate question and all that really matters.