The United States http://rockettube.fun rokettube Many of the AfD supporters are disaffected conservatives. Public opinion research groups say that mainstream candidates may have underestimated the strength of the AfD because many of its adherents do not want to admit that they intend to vote for an anti-euro party. "They are an unknown quantity and a party to watch," said Manfred G脙录llner, head of Forsa opinion pollsters yesterday.