What's behind the ANC's election setback? | Inside Story

It's a vote that's ended thirty years of the ANC's dominance in South African politics.
Voters dealt a blow to the African National Congress, angry at what they consider to be its failure to deal with a dire economy and poverty.
Now, the party will have to engage in talks with rivals to form a coalition government.
So what concessions might it make?
And what does a weakened ANC mean for politics in the country