>> greta: any way to measure to what extent sarah palin was a factor? >> no question governor palin is the most dynamic motivator of primary votes in the republican party today that her ability to for 25% of the party, it was a big bloc, to move them bayou tube and facebook and twitter, it is a remarkable achievement. >> greta: how does she do that? we've been to alaska, it is governor palin, her husband and family. there's no huge machine. there's no staff. she might has someone who does work for her in southern california this is not a huge operation. what it is? >> you partly answered your own question. i've watched a number of your interviews in alaska, with the palins. she a national figure. she's on national television. she has an automatic reach. she's a unique character. you've interviewed her at home this is not your normal everyday boring politician. she is her own person. her husband is his own person.