[ASA Vet]

If he kept his passport renewed, he never would have needed to produce a certified birth certificate.

Even an expired passport is valid proof of citizenship.

[null and void]

Even an expired passport is valid proof of citizenship.

Yes, but being a mere citizen is a necessary, but not sufficient, requirement to being constitutionally qualified to be president.

[bvw]

Even an expired passport is valid proof of citizenship

That's not law, it is custom, and for some things it's the published regulation. Yet in any case, if there's reasonable evidence or testimony that contradicts the assumption of proven citizenship given by any document -- such as passport -- it would be unreasonable, if not actionable misfeasence of office to ignore contrary claims.

The Presidency is the most powerful office in the world. You would accept an expired passport for the Presidency?