harassment and an overall sexist and hostile culture at the San Francisco-headquartered firm. After an internal investigation, Uber launched a sweeping reorganization.

Uber: The highs and lows of the ride-hailing superstar

Drivers to be phased out

Despite the controversies, Uber continues to expand. It now offers car-pooling and food delivery services in several cities. In 2016, it tested the first driverless vehicles in the American city of Pittsburgh. It plans to introduce some 24,000 self-driving cars between 2019 and 2021 although drivers will still sit at the steering wheel, monitoring the vehicle.

Uber: The highs and lows of the ride-hailing superstar

Uber takes to the skies

Uber faces even more legal and regulatory hurdles for its next venture, which will allow riders to beat urban traffic jams by booking flying cars that will pickVoters in Iran will be heading to the polls on Friday to elect a new president, in a crucial election seen by many as a potential battleground between Reformists and Fundementalists.

The Reformist front-runner is incumbent President Hassan Rouhani, who signed 2015's historic nuclear deal with world powers. The fundementalist favourite, on the other hand, is Judge Ebrahim Raisi, who is the protegee of Ali Khamenei, Iran's powerful supreme leader.

The result of the May 19 election will undoubtedly shape Iran's domestic politics for the coming years - but will it also effect the country's foreign policy?

Marwan Bishara, Al Jazeera's senior political analyst, offers his view on the impact the election might have on Iran's regional policies and ambitions.

How will Iran's presidential elections impact its foreign policy?

Marwan Bishara: I expect