 Madaxweynaha kasoo jeeda xisbiga Jamhuuriga ayaa loollan adag kala kulmaya musharraxa xisbiga Dimuqraaddiga ee lagu magacaabo Joe Biden, kaasoo ahaa madaxweyne ku xigeenkii Barack Obama, laakiin siyaasadda Mareykanka kusoo dhex jiray tan iyo 1970-meeyadii. 