(VOVworld) – US President Barack Obama cast his early ballot for the November 8 election during an unannounced trip to Chicago on Friday.

US President Barack Obama casts his vote for president in early voting at the Cook County Office Building in Chicago. (Photo: Reuters)

Obama voted at Cook County Office Building in Chicago, Illinois, who he was a US Senator prior to becoming president in 2008.

It remains unknown whether he voted for Democrat candidate Hillary Clinton or Republican candidate Donald Trump. But Obama has been campaigning for Clinton to succeed him in the Oval Office. He also said Trump does not have the personality to become a US president.