Determinations of the relevance of evidence and of claims that evidence is unduly prejudicial are mainly for the trial court and are reviewable only for abuse of discretion.

United States v. Payne, 437 F.3d 540, 546-547 (6th Cir. 2006) (upholding trial court's admission into evidence of co-conspirator's out-of-court statements because "each qualified for an exclusion from the hearsay....If a statement is made by a party and the statement is offered against the party that made the statement, the federal law of evidence characterizes such a statement as non-hearsay and exempts it from the hearsay prohibition found in Federal Rule of Evidence 802 or a comparable State rule even though the exempted statement otherwise satisfies the definition of hearsay given in Rule 801(c) or a comparable State rule.

McEuin v. Crown Equipment, Corp., 328 F.3d 1028, 1034-1035 (9th Cir. 2003) (holding, in plaintiff forklift operator's action against defendants manufacturer and distributor for product liability, that evidence of military forklift....Hearsay is a statement that (i) is made other than at the trial or proceeding at which it is offered and (ii) is offered to prove the truth of the matter asserted by the maker of the statement, the declarant.

United States v. Sonntag, 684 F.2d 781, 787-788 (11th Cir. 1982) (upholding trial court's admission of evidence pertaining to accused Nicholson's prior drug sale to an informant because such evidence was offered to prove accused's predisposition after he had raised the entrapment defense).A subjective entrapment defense makes an accused's criminal liability contingent on a finding of the accused's predisposition or the accused's lack of predisposition to commit the crime charged and since criminal predisposition is a character trait, the defense of subjective entrapment makes accused's character an element of either a defense or a criminal charge, evidence of accused's criminal predisposition -- including evidence in the form of reputation, opinion, and evidence of specific instances of accused's conduct -- is not barred by the rule against the use of a person's character to show the person's conduct.