drifting_gtus

so when i get in to my car and turn the key, power and everything turns on just as it should but as soon as i go to crank the engine all the power shuts of until i return the key back then boom got power again, if i turn the key very slowly (after about 10-50x) it will start, iv cleaned my terminals and check my plugs as well as all my connections but cant figure it out...... thanks for the help