U.K.

With yet another prime minister's resignation, the British government's 10 Downing Street looks like a revolving door. Analysts blame polarization, populism, a flawed system and poor leadership.

After a bruising first six weeks in office, the prime minister replaced her finance chief with former leadership rival Jeremy Hunt. But she still faces a barrage of criticism.

The British pound sank to $1.03, before stabilizing slightly, as traders and investors react negatively to new government plans to cut taxes for highest earners and businesses and boosting borrowing.