/// <summary>Loads saved collection of federation members from the database.</summary>
private void LoadFederation()
{
VotingManager votingManager = this.fullNode.NodeService <VotingManager>();
this.federationMembers = votingManager.GetFederationFromExecutedPolls();
this.UpdateMultisigMiners(this.GetMultisigMinersApplicabilityHeight() != null);
}