The Republican Party is well known for its consistent support of gun rights and opposition to attempts to impose restrictions on these rights. As such, it might strike some as odd that the gun-loving Republicans are holding their national convention in a gun free zone in Cleveland, Ohio. Though the party might seem helpless in the face of the Secret Service (which banned guns from the Republican national convention in 2012), brave patriots have risen in its defense. A petition to allow open carry at the Quicken Loans Arena during the Republican Party’s national convention has been signed by over 50,000 supporters of the Second Amendment.
While some have suggested that the petition is not the work of true gun-loving patriots but by wily Democrat James P. Ryan, it is well grounded in an interesting moral argument. In any case, to dismiss the moral argument because of the identity of the author would be to fall into a classic ad homimen fallacy. After all, the merit of an argument depends on the argument, not the identity of the author.
The argument used to justify the petition is based in the principle of consistent application—this is the principle that standards must be applied the same way in similar circumstances. Exceptions can be justified, but this requires showing that there is a relevant difference between the applications that warrants changing or not applying the standard.