(Favoritism, Compadrismo, “For my friends, anything,” Reverse of Ad Hominem)
The reverse of the “Ad Hominem,” this fallacy argues that a position/idea/argument must be true/good because of a particular individual who is involved. A classic example is investing in a friend’s business even though your friend may not have the skills or knowledge necessary to successful run a business. It isn’t a fallacy if the individual from whom you are basing your claim is actually qualified and you are basing your opinion on their qualifications; it’s only a fallacy when you base it on who the person is.
Examples:
“My brother-in-law says he saw you goofing off on the job. You’re a hard worker, but who am I going to believe, you or him? You’re fired!”
“My friend is running for office, and I just know he’d be a great representative.”
“My sister recommended this plumber, so he has to be good.”
“He’s a member of our church, so he can’t be wrong!”