(i)
In general Except as provided in clause (ii),
any alien convicted of, or who admits having committed, or who admits committing acts which constitute the essential elements of—
(I) a crime involving moral turpitude (other than a purely political offense) or an attempt or conspiracy to commit such a crime, or
(II) a violation of (or a conspiracy or attempt to violate) any law or regulation of a State, the United States, or a foreign country relating to a controlled substance (as defined in section 802 of title 21),
is inadmissible.