goals from striker kenny miller and returning midfielder haris vuckic had the home side two ahead and cruising before mcculloch was shown a straight red card by referee bobby madden for fouling striker osman sow .
it left the 10-man govan side to fight a rearguard battle in the second half .
rangers held on to move into second place in the league , three points ahead of hibernian with a game in hand over the leith club .