Johnson: UK has a lot to do before it leaves EU

Boris Johnson said last week London would begin the formal process for leaving the EU-block early next year by triggering Article 50 of the Lisbon Treaty under which London can leave the EU after a two-year negotiations period. But the United Kingdom has a great deal of work to do before it can leave the European Union, Foreign Secretary Johnson says.

Johnson also talked about immigrants, reiterating that Britain must regain control of immigration through the split form the EU.

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