There's no doubt it's been a miserable week for the U.K. government, with Prime Minister Keir Starmer and his ministers coming under increasing pressure as investors question Britain's fiscal, economic and political future.

A global bond market mini-meltdown on Tuesday brought the yield on the U.K.'s 30-year gilt up to a level not seen since 1998, also hitting the British pound and adding to the Treasury's fiscal headache ahead of the Autumn Budget . And Starmer's deputy — and housing minister — is facing calls to quit this week after she admitted underpaying tax on a second home.

Deputy PM Angela Rayner defended herself, saying she acted on expert advice when buying her seaside apartment , but that's cold comfort as the U.K. government struggles to inspire confidence and trust in

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