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Ruth Davidson became leader of the Scottish Conservatives in 2011.

She became one of the leading voices in the Remain campaign in the 2016 EU referendum when she repeatedly clashed with Boris Johnson in a TV debate.

In the 2017 election Ms Davidson led the Scottish Conservatives to their best result in a Westminster election since 1983.

Without her Scottish Tories gaining 12 seats north of the border on 8 June, Theresa May would not have been able to form a government.

She did not support Boris Johnson in this year's Conservative leadership race, backing instead Sajid Javid and then Jeremy Hunt.

After Mr Johnson won the contest, Ms Davidson said she would "judge his premiership by his actions in office".

However she has previously made her opposition to a no-deal Brexit clear writing in the Scottish Mail on Sunday that she would not support such a move.