Wednesday : A source says the arrested man is not legally in the United States . Onyango Obama was arrested on August 24 after failing a field sobriety test , Brandolini said . President Obama is arrested for driving under the influence of alcohol . The arrest occurred on Wednesday . The arrested man is the half - brother of the president 's wife .
Wednesday : A source says the arrested man is not legally in the United States . President Obama is arrested for driving under the influence of alcohol . The arrest occurred on Wednesday . The arrested man is the half - brother of the president 's wife .