Meet the TTIP campaigners
The Transatlantic Trade and Investment Partnership, or TTIP, is a deal to cut tariffs and regulatory barriers to trade between the US and EU countries, making it easier for companies on both sides of the Atlantic to access each other's markets.
Industries it would affect include pharmaceuticals, cars, energy, finance, chemicals, clothing and food and drink.
But not everyone believes it would be a good thing, as the BBC's Catrin Nye reports.
The Victoria Derbyshire programme is broadcast on weekdays between 09:00-11:00 on BBC Two and the BBC News Channel.
21 Jun 2016