>for calling Hillary Clinton a war hawk
his political affiliations and motivates as well as intent matter. The public has a legitimate interest to figure out if whistleblowers act on behalf of foreign powers, cooperate with domestic political parties or are in some other way potentially influenced. It can determine what they decide to leak, who they aim to attack, and so on. If it turns out that someone who leaks documents that concern national security has ties to a foreign power the situation becomes immediately much more suspect and it becomes much more likely that leaks are chosen in such a way as to deflect or confuse.