Rishi Sunak is facing questions about his judgment after he accepted a private jet trip from a controversial businessman.

The prime minister has so far accepted more than £100,000 worth of private jet and helicopter rides from Tory donors since taking office, mainly to travel to party events.

The most contentious are flights worth £38,500 taken by Sunak and aides to Conservative conferences in Wales and Scotland in April last year.

The journey was paid for by Akhil Tripathi, a 39-year-old medical devices entrepreneur who has sought to sell to the NHS, but is being sued by investors for alleged fraud.

Tripathi has given more than £150,000 to the Conservatives and attended a series of events with ministers. After the flight Sunak sent him a