this is a fascinating character that could be an x-factor. >> scott walker july 13th is when he will enter the race like so many others who waited after they were running for some months. what does he bring and has his brand been tarnished over the last few weeks? six weeks ago, he was flying high. now people are saying hold on. >> his numbers were higher. he was flying high before he announced. if he's going to announce in two weeks, he has lost peak fund raising days when he was leading the pack early before he could capitalize on the high percentage points. look i think his brand is tarnished. there are people who are deeply disappointed by his response to this marriage decision. >> he's calling for a constitutional amendment. >> he is making a play for iowa.