Bachmann Tops New Hawkeye State Poll

ARG poll:

Bachmann       21

Romney          18

Paul                 14

Palin                11

Gingrich           8

Santorum          5

Huntsman         3

Cain                  2

Giuliani            2

Pawlenty           2

Perry                2

Plus: Wash Post on why Bachmann's lead is larger than appears.