SACP to contest 2019 elections?  Not quite, yet.  Sollay Mapaila was interviewed on The Justice Factor and was quizzed on this at length as it became clear that the SACP does not mean that to mean quite what you and I mean.    

As I understand it, if the SACP is happy with Dec 2017 ANC presidential choice, they will remain in the alliance yet will "contest" the elections in the sense that they will have their own SACP campaign in which they will campaign for ANC/alliance  votes.  In other words they want the SACP to be more visible as an alliance partner.  And only of they are not happy with the Dec 2017ANC presidential choice will they break from the alliance and truly contest the 2019 elections in having the SACP as a choice on the ballot.

But I am open to correction