right now herman cain is the new flavor amongst the conservatives that don't like romney. someone has to organize the vote es around someone else. romney's not really trying to win in iowa. if you get to where they divide up the vote, romney could do well in iowa as well. >> liz, one of your folks put together a piece noting that maybe perhaps the field is starting to target mitt romney. romney faced relentless criticism four years ago for changing his positions on abortion and gay rights and gun control. this year the massachusetts governor has largely escaped such attacks. that might be changing. >> certainly starting to change. up until this point what you've seen is the candidates, the republican rivals tepidly, tentatively trying to do this line of attack. but nobody has really had any success. and nobody has really gone full blazing at him on this issue.