he tampered with a record, different than support for the 2nd amendment
yep
http://guardianlv.com/2013/06/florida-sheriff-nicholas-finch-arrested-for-doing-his-job/
It is alleged that he then altered or destroyed paperwork relating to the arrest.
Not so much in this case. He is the Sheriff, one assumes that he is then the Deputy's boss, no? Whether an arrest is made or not for such offenses is at the discretion of the police/sheriff. So, does the Sheriff run his department or not? If he ripped up the arrest paperwork and released the man before he was brought to the prosecutor, then what is the case?
I'd say its pretty clearly a case of being within the discretion of his office.