Wiper leader Kalonzo Mysyoka and his Kanu counterpart Gideon Moi have arrived at SKM Center in Karen ahead of the 'big announcement'.
Kalonzo is highly expected to declare his presidential bid and name his running mate, according to a source close to the former vice president.
Already, a tent has been erected with seats properly arranged.
At the front of the tent, there are two special seats, triggering speculation that he could be unveiling the running mate.
Andrew Sunkuli, who is expected to be unveiled as running mate, has also arrived.
The leaders are now in a closed-door meeting and are expected to address the media anytime from now.
