The 35-year-old real estate developer emerged as one of Trump's closest confidantes during the election campaign.
Freeze on hiring lobbyists and trouble finding Republicans putting strain on Trump transition team
Obama called on his party to reevaluate how they reach out to voters, especially those not living in big cities.
Critics claim the former Breitbart News chief works for the alt-right.
Armstrong supports protests taking place across America after Trump was voted the 45th president.
New presidential aides bring little experience of running government to the White House.
Johnson had described the European reaction to Trump's victory as a 'whinge-o-rama'.
Trump also chose Stephen Bannon as his chief strategist and senior counselor.
Democratic message of standing up for working people 'no longer holds much sway,' said Sanders.
The leader-in-waiting is understood to now be receiving intelligence reports and the President's daily brief.
Obama not in joking mood as he prepares to meet with Republican president-elect.
The First Lady is set to leave the White House in January after eight years.
Filipino president adopts a conciliatory tone after frequent and hostile outbursts towards Obama.
America's new first family will be one of the largest and wealthiest the White House has hosted in 200 years.
Republican nominee took home victories in several other swing states, including North Carolina and Ohio.
Meanwhile, the White House has signalled it is open to an Obama-Duterte meet during the Apec summit in November.
The US president has commuted the sentences of 872 people since taking office.
Officials claim that the alleged hacker was 'so surprised' by the crackdown that he fainted.
The tough-talking Russian president slams White House for 'hacking hysteria'.
The US has formally accused Russia of attempting to 'interfere' in the upcoming election through hacking.
The outgoing president has vowed to work closer with private companies to get humans to Mars – and back – safely.
WikiLeaks Julian Assange has promised continuous leaks until the November election.