What is the burden of a defendant challenging the sufficiency of the evidence underlying their conviction?

A defendant challenging the sufficiency of the evidence underlying his conviction "bears a very heavy burden." United States v. Soto, 47 F.3d 546, 549 (2d Cir.1995) (internal quotation marks omitted). We will find evidence to be legally insufficient to sustain a conviction only where, viewing the evidence in the light most favorable to the government and construing all inferences in its favor, no rational trier of fact could have found the essential elements of the crime charged beyond a reasonable doubt. United States v. Amiel, 95 F.3d 135, 141-42 (2d Cir.1996).