key switch turn starter over and switch is putting out power

the starter switch locked up would not turn, replaced key switch and housing key switch. fits into switch turns on good and lights seem to work okay and when switch is in the starting point, to turn the starter over it does not work. I checked to see if I was getting power going out of the switch and I was losing power from the switch to the starter somewhere after the switch.
it is between the switch and the starter I am losing power.