WATCH: Confused about the EU referendum? Our Political Correspondent Alan Smith is here to help
Our Political Correspondent Alan Smith takes a closer look at the upcoming in/out referendum.
David Cameron's presenting his case later to stay in the EU, as he addresses MPs in the Commons.
Yesterday Boris Johnson announced he's backing those who want to leave Europe - putting him at odds with the Prime Minister and the majority of the cabinet.
Our Political Correspondent Alan Smith has been in Brussels ahead of the in/out referendum on June 23rd: