Nothing he can do about it now, even if he wins.
Two forgeries of birth certificates later who would have thought 0bama would lie about his place of birth? Suspicious SSN considering 0bama has a one from a state he was never in. Attended universities as a foreign student.
Of course he is not what he claims to be.
Not so.
My own view is that the enormous underlying conflict in our Culture will result in a major disconnect before the issues inherent in the Obama eligibility question are significant. But if that is not correct--
Continuing action and events that have current impact which require participation by a Constitutional "President" include legal process that would form the basis for a Constitutional crisis.
A good example is the Supreme Court. Assuming that Obama was in fact not qualified under the Constitution, neither Sotomayer nor Keagan are on the Court. Add that to the prospect of imminent replacement of Breyer, Kennedy, and Ginsburg and you can see a sudden shift in the basic legal structure--replace four fuzzies and the primary balancing vote with strong Justices off Trump's list and we should see a reversal of the law on federal government powers such as NLRB v. Jones & Laughlin Steel and the decisions expanding taxing power beyond the Income Tax Amendment.
A wide range of Government action requires a Constitutional President--much of Barry's agenda in the White House would not survive a conclusive decision holding him ineligible.
I doubt we get there because I think the structure dissolves before we do but that is just a judgement call which may be incorrect.