Donald Trump has named Brad Parscale, a little-known digital guru credited with helping win him the White House, as campaign manager for his 2020 re-election bid.

Mr Parscale, a Texas-based web expert, will lead "advanced planning" for the 2020 presidential vote and help with the 2018 midterm elections, according to the Trump campaign.

Brad Parscale will lead the President's re-election campaign. Credit:AP

The decision to name a 42-year-old with limited political experience who lives 2500 kilometres from Washington as the campaign's lead has raised eyebrows, but the bearded Mr Parscale's central role in the 2016 victory, his close ties to the Trump family and his first-hand knowledge of social media campaigning helps explain the choice.

Mr Parscale, a two-metre-tall former university basketball player, started working for the Trump organisation in 2011 when he was approached about creating a property website.