The competitive nature between former Prime Minister Raila Odinga and Deputy President William Ruto dates back to when they were both in ODM Party.
As the race to succeed retired President Mwai Kibaki started gathering momentum towards the end of his first term in 2007, a looming showdown between both Odinga and Ruto was inevitable.
They had both just partnered to floor Kibaki's first attempt at changing the constitution in 2005.
All along, Ruto, who had been in the opposition and Raila who was in government as Minister for Roads, joined him in shooting down the president's dream.
The then Electoral Commission of Kenya had unknowingly launched a movement when it chose an Orange as the symbol to represent the section of Kenyans that opposed the new constitution.
The campaign against the new set of laws was so massive that it bore a new political party called the Orange Democratic Movement.
Current Tourism Minister Najib Balala and President Uhuru Kenyatta coined the name but the latter was careful not to leave his party KANU for the newest sensation in town.
As the whole country went into an election mood, the politicians who had opposed the Wako Draft coalesced around the newly formed ODM but Uhuru threw his support around Kibaki.
The biggest test for the new party was getting the flagbearer who would lead the multitudes of people that had joined.
Five politicians stood out and formed the 'Pentagon' comprising of Raila, Ruto, Mudavadi, Joe Nyaga and Balala.
They all battled it out during the 2007 ODM Convention at Kasarani Sports Centre where delegates cast their votes to decide who the top dog was.
Raila emerged first, trumping all the other candidates by garnering 2,656 votes.
Mudavadi came in a distant second, managing 391 votes while Ruto followed with 366 endorsements. Nyaga only scored 30 votes but Balala didn't even manage 10 votes.
