Allowed to respond, Huckabee acknowledged that he raised gasoline taxes to build roads and help his state's education system, which herefusedto apologize for.
Mr Speight, 42, refused all offers of help before saying he "needed to leave" when he was approached in Chamberlayne Road, north-west London, on Monday.
Sir Tim refusedto be specific about which items of data he would help make public, but said he was interested in suggestions from bloggers about what they would like to see.