Car wont crank or start but has power

Hello, just because you have power but no crank and it will not jump start does not eliminate your battery as the source of the problem. First, have your battery checked for state of charge and the ability to sustain a load. If it fails, replace. If it passes both, then you'll move on to other possible causes, such as checking fuses, the starter motor, cabling, ensuring the transmission shift lever is in "PARK" or "NEUTRAL" position and ensuring proper keys for the vehicle are being utilized.