Anti-brexit campaigners wave Union and EU flags outside the Houses of Parliament in central London on December 12, 2018. - British Prime Minister Theresa May vowed to fight "with everything I've got" an attempt on Wednesday by her own Conservative party to remove her from office over her unpopular Brexit deal (Photo by Daniel LEAL-OLIVAS / AFP)

Anti-brexit campaigners wave Union and EU flags outside the Houses of Parliament in central London on December 12, 2018. - British Prime Minister Theresa May vowed to fight "with everything I've got" an attempt on Wednesday by her own Conservative party to remove her from office over her unpopular Brexit deal (Photo by Daniel LEAL-OLIVAS / AFP)