Liz Truss and Rishi Sunak are battling it out to become the next leader of the Conservative Party and Prime Minister of the United Kingdom.
The Foreign Secretary and former Chancellor of the Exchequer will go head-to-head for the third time since they made it into the last two of the contest.
Truss is the favourite to take over from Boris Johnson and get the keys to Number 10 Downing Street.
Conservative Party members will start to receive their ballot papers this week with the winner eventually announced on Monday, September 5.
Sunak will be looking to close the gap on Truss as postal ballots begin to drop on doormats.
The former chancellor, who has strongly criticised his rival for promising "morally wrong" tax and spending plans which would increase borrowing, dismissed suggestions his own plan to cut income tax was motivated by the need to gain ground in the election.
Truss has promised around £30 billion of tax cuts within weeks of taking office if she wins, as part of a package to help people struggling with the rising cost of living.
When is the next Tory leadership TV debate?
The two Tory candidates will face off on live TV later today when they take part in the Sky News debate.
Kay Burley will moderate the contest between Sunak and Truss on Thursday, August 4 at 8pm.
It comes following the BBC and Talk TV debates last week.
How can I watch the debate?
The programme will be available to view on Sky News channel 501, on Freeview channel 233 and Freesat channel 202.
It will also be streamed live on YouTube.
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