In a statement after the election, U.S. Secretary of State John Kerry applauded the vote -- but did not mention Kenyatta.
"We ... will continue to be a strong friend and ally of the Kenyan people," he said.
Kenyatta has said the indictment will not affect his ability to do his job and urged the international community to respect the will of Kenyans.
Analysts say the ICC indictment may have rallied citizens to Kenyatta's side in defiance of the West.
A majority of the court's investigations are focused on African nations.
"Many Africans have lost faith in ICC and view it as targeting African leaders and failing to discharge its justice among non-African leaders," Johnson said.
Kenyatta's trial is scheduled for July, while his running mate's is in May.
Kenya will become the second African nation after Sudan to have a sitting president facing charges at the International Criminal Court.