Exit poll data shows demographic makeup of voters unchanged in potential good sign for Donald Trump

The 'hispanic surge' has been one of the main encouraging signs for Donald Trump

Republican presidential nominee Donald Trump holds up a rubber mask of himself during a campaign rally in the Robarts Arena at the Sarasota Fairgrounds November 7, 2016 in Sarasota, Florida (Chip Somodevilla/Getty Images)

The demographics of voters in the US election are mostly unchanged from the previous election, according to exit polls.

That is thought to be a bad sign for supporters of Hillary Clinton, who had taken encouragement from what appeared to be a "hispanic surge" of voters who would be against Donald Trump.

CNN's exit polling data shows that 70 per cent of voters in the 2016 election were white. That is relatively unchanged from previous elections.

There is a drop of only four percentage points of white voters. There were only slightly more black voters and slightly less Latinos, according to the same data.

The electorate is still likely to be the "most diverse ever seen", according to analysts. But if the number of minority voters is lower than expected then it might be more encouraging for Mr Trump's camp.

Some of the CNN exit polling data has been more encouraging for Ms Clinton. That included the CNN poll on what voters were looking for from their candidates – which suggested that voters were looking for experience and judgment rather than change.