The country’s three biggest political parties are holding their final campaign rallies as electioneering reaches the final stretch this weekend.The ANC will flex its muscles at its Siyanqoba rally at the 94,000-seat FNB Stadium in Johannesburg on Saturday.“It will be the culmination of a vibrant election campaign that has reached every corner of the country” said party spokesperson Mahlengi Bhengu-Motsiri.Addressing journalists on Thursday about the party’s state of readiness for the rally, she noted that over the course of the past three months, the party had seen a clear shift…