Ninth Circuit -- MONDACA-VEGA V. HOLDER

District court holding as to whether petitioner is an American citizen is reviewable only for clear error.

Burden of production on petitioner to prove citizenship by a preponderance, but the government still bears the ultimate burden of showing non-citizenship.

Dissent: De novo appellate review.  Government must show by clear, unequivocal, and convincing evidence.

MONDACA-VEGA V. HOLDER