Nathan Stone

 was a candidate for Overseer in Vault 11 endorsed by the Justice Bloc. He was indignant about being nominated, due to the "dirty back room politics" of the Justice Bloc. He is refering to the fact that the Justice Bloc leaders had forced his wife, Katherine to perform sexual favors for them or they would nominate Nathan for Overseer. They dod so after that regardless, and Katherine began murdering Justice Bloc members to ensure her election as Overseer. This led to the "I hate Nate" posters being changed to "I hate Kate".

Appearances
is only mentioned in Fallout: New Vegas.