list_for_each_entry_safe(node_t, node, t, &X_prime->Follower, node_list) {
if (identity(node) == node) {
follower_to_leader(node);
list_for_each_entry_safe(node_t, node, t, &X_prime->Follower, node_list) {
if (identity(node) == node) {
follower_to_leader(node);