Aresident being interviewed live by a television reporter stated that, "the biggest problem in this city is corruption in city government, particularly the mayor." the mayor has now brought an action for defamation against the resident. at trial, the mayor has produced testimony as to his honesty and good character. as part of his defense, the defendant seeks to offer into evidence the fact that the mayor was convicted two years ago of taking a bribe to award a city contract for solid waste disposal. is the evidence admissible?