<sod >" Mr Johnson said the EU "is ruthless in its negotiating techniques", citing a "shameful" leak of details of a meeting between Ms May, European Commission president Jean-Claude Juncker and Brexit negotiator Michel Barnier.< eod>< sod > â Mr Johnson said the EU âis ruthless in its negotiating techniquesâ, citing a âshamefulâ leak of details of a meeting between Prime Minister Theresa May, European Commission president Jean-Claude Juncker and Brexit negotiator Michel Barnier.< eod>