John Simpson analyses the impact of the election of a right-wing president in Poland on the country’s government, and examines the long-term effects of Sudan’s ongoing civil war.

Mr Nawrocki presented himself as the candidate to hold the government of the prime minister, Donald Tusk, in check.

Karol Nawrocki, the conservative historian who won Poland's presidential election, cultivated a tough-guy image during his campaign, posting videos of himself at shooting ranges and boxing rings. While his liberal opponent Rafal Trzaskowski played up his European credentials,