obama. i think the voters are starting to realize this is the field. it basically and you said it, gregg, the republican base is fired up regardless of who wins the primary. >> bob, great to see you. thanks very much. >> heather: new reports from the front lines of libya that rebel fighters are plotting their next move after suffering a major set back. they are said to be regrouping in a khadafy stronghold after being driven by by fierce resistance. david piper is streaming live from tripoli. >> the rebels launched an offensive to try to recapture the hometown but they are facing fierce resistance. they are being held up by experienced snipers who are training their guns from the north of high-rise buildings.