What is the likelihood of Donald Trump being removed from office before his term expires?

Thus far, he has violated the US Constitution in at least two different areas. The first is his restriction on Muslim immigration, which runs directly counter to the First Amendment's stipulation regarding the separation of church and state. The second is his failure to prevent Trump Organization subsidiaries from doing business overseas, specifically with foreign governments. This directly violates the Emoluments clause, which is meant to restrict foreign influence in American politics. I'm not aware of any other specific violations, but those two are sufficient to say that Trump's Presidency has already proven itself to be unconstitutional in nature. Does this mean that impeachment is a genuine possibility?