Proof using.
red. unfold votedFor_term_sanity in *. simpl in *.
intros. subst. repeat find_higher_order_rewrite.
destruct_update; simpl in *; eauto;
find_copy_eapply_lem_hyp handleClientRequest_term_votedFor;
intuition; repeat find_rewrite; eauto.
Qed.

(* Specifications: *)
Lemma votedFor_term_sanity_do_leader :
refined_raft_net_invariant_do_leader votedFor_term_sanity.