Washington D.C. - A new CNN poll shows little has changed in the wake of the Democratic and Republican national conventions: Joe Biden continues to lead comfortably in the race for the White House.

While Donald Trump (74) initially saw a bump in his numbers after Kamala Harris (55) was announced as Democratic vice presidential candidate, Joe Biden (77) continues to be in the lead.

The presidential poll published by CNN shows Biden backed by 51% of registered voters, compared to 43% who prefer Trump.

Conducted by SSRS, an independent research company, this is the first poll released after the unusual party conventions that took place in the previous weeks.

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The poll also measured the share of US citizens who would vote in favor of their chosen candidate, rather than against their opponent. The number of registered voters who back Biden personally has risen from 38% to 45%. Meanwhile, for Trump, the figure is now 77%, up from 67%.

In this most unpredictable of elections, it's still impossible to say with any certainty what twists and turns are still to come before the November 3 showdown.