brake bleeding problem (searched)

hey guys, i was bleeding my brakes and the rear went fine, i got to the passenger front and tried bleeding it about 6 times, and nothing came out of the bleeder. could something be stopping fluid from getting to the caliper? the rears worked perfect which is why im confused.
thanks in advance!

Did the brakes pull to the left before this?
You try removing the bleeder screw completely?

it was the screw, the hole was clogged. n00b status?