Harris regains small poll lead post-debate as US election inches closer

Harris, believed to be the debate winner, establishes crucial advantage over Trump ahead of the race's final stretch

Kamala Harris has re-established a crucial polling advantage over Donald Trump following this week's debate, which a clear majority of voters believe she won, according to a range of surveys.

The latest Guardian polling trends tracker shows the US vice-president regaining a small lead over the Republican nominee since Tuesday's encounter in Philadelphia, a shift from surveys at the start of the week when the pair were essentially tied.