They will do what happens here in Australia after a party is beaten out of office after being there for years.
1 blame the other side for lying
2 When it is shown that they lied too, they blame each other
3 Decide who to blame and see them fired / scapegoated / burnt at the stake
4 Throw the next election chances due to being too busy ploting to be the next leader, pbeing the leader and trying to get rid of the ones who want to be
5 Take the negative line against everything the other party wants to do and block them at every turn
6 Get back in when the other side has grown lazy / tired / board or has stuffed up beyond what spin can control.
Cycle then restarts!