Donald Trump airs first campaign advert

Republican presidential candidate Donald Trump has begun airing his first campaign adverts of the general election in key battleground states such as Florida and Ohio.

His Democratic opponent Hillary Clinton has spent more than $60m (£45m) airing adverts over the past few months in key states.

Although outside groups supporting the New York real estate mogul have been airing pro-Trump commercials, the campaign's late entry into political advertising has raised concerns among fellow Republicans.