That there is a motivation to gain maximum political gain out of the capture of OBL is not far fetched. That Bush would seek to delay the capture campaign for maximum political impact is ridiculous. It would be stupid to do so, as keeping OBL on the loose would be too risky. If a still free OBL should take credit for a terrorist strike at the U.S., it would hardly benefit Bush.
Please re-adjust your tinfoil.