Other sites are covering these things in much more depth than I am. I'll just weigh in with Assistant Village Idiot obvious sort of stuff.
Why is a president weighing in on a local police matter in Cambridge? That's just completely inappropriate. Even if he were very wise, had looked into the matter deeply, and given a measured response, it's not his yard. I conclude that this is some sort of mission creep, where Obama envisions himself as the race arbiter for the nation. He's not.
I am willing to believe just about any bad thing about any major side in a Central American country. That's just their history. I don't think I had even heard of Zelaya before a few weeks ago. There are likely two sides to the discussion about whether a president claiming constitutionality trumps the legislature and the Supreme Court, which disagree with him. I don't know where I would stand on such a discussion. But we're not having that discussion. The people defending Zelaya are not merely saying he has the better claim, they are insisting that the actions of the legislature and the Supreme Court should have no weight at all. That's just nuts. Game over; one side is not arguing honestly.
Following all the stories about GM execs being threatened if they speak up, IG's fired just after critical reports come out, financial institutions told they will be cut off from the table if they speak up, and now major health care players being ordered not to take out critical ads, I have to conclude: We all live in Chicago now.