Boris Johnson asked the Chancellor George Osborne "to look at the baleful effects of stamp duty" in London and elsewhere during his conference speech.
The Mayor of London told the Conservative Party conference: "It's called stamp duty for a reason, because it's stamping on the fingers of those who are trying to climb the property ladder.
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Former Conservative cabinet minister Lord Mayhew has died aged 86, his family has said.
Today's showery weather to mostly die out during the evening, only for rain spreading eastwards from the morning.
Thousands of people have attended celebrations around the country to mark Armed Forces Day.