One of Ichirō 's grandsons , Yukio Hatoyama , became Prime Minister - designate in 2009 as a member of the DPJ ; but he will confront challenges which are much different than those his father and grandfather faced when they were in government .
One of Ichirō 's grandsons , Yukio Hatoyama , became Prime Minister - designate in 2009 as a member of the DPJ . 
 He will confront challenges which are much different than those his father and grandfather faced when they were in government .