Things are bad enough, you wouldn't want GWBush actually in charge, in any way, of the polling. When I think about it, the way the constitution sets up the election of the executive branch is wise.
Naturally, judges shouldn't be in charge; we have needed them to settle differences.  And having either congress or the white house do it is leaving the fox in charge of the henhouse.

Thus it is left to the states that want to yield to federal authority to select the time and manner ot polling.