With 100 days to go until the United States decides who will be its next commander-in-chief, Donald Trump's Republican campaign is preparing to launch an attack on five main fronts that he believes will help him win the White House.

As the clock to the November 8 election starts ticking, Mr Trump will travel to key states, seeking to recruit disaffected Bernie Sanders supporters, exploit anger among white working class men, fire up America's huge gun-owning population, capitalise on post-Brexit fervour, and promise jobs.

Hillary Clinton set out her stall last week as the reliable, experienced candidate at the Democratic convention in Philadelphia.

Mrs Clinton can expect a bounce in polls after her convention, but experts increasingly believe the race will go down to the wire in a handful of mostly working class battleground states such as Ohio and Pennsylvania.