Former PM Major calls on Johnson to fire top advisor Cummings

British Prime Minister Boris Johnson should fire Dominic Cummings, the advisor behind his high-stakes Brexit strategy that resulted in an dramatic purge of his own lawmakers this week, former prime minister John Major said on Thursday.In a sign of how far Brexit has distorted British politics, Johnson's Conservatives expelled 21 rebels on Tuesday - including the grandson of Britain's World War Two leader Winston Churchill and two former finance ministers - for seeking to block any exit from the