The G-7 is meeting this weekend in France. What is it, what do they discuss and why does Trump want Russia back in?

The seven members have reached out to outsiders in several ways. One way is including top officials from the European Union as an eighth participant, giving the other EU member countries a voice. This year, France invited India, Chile, South Africa and Australia as important regional democracies, plus four African nations: Burkina Faso, Egypt, Senegal, and Rwanda.