Amid this mayhem, the Commonwealth has withdrawn its observers, the European Union has scaled its election operations back and the international community has repeated its calls for “calm”.
But Mr Odinga clearly attempted to seize an historic moment.
He told his supporters in Nairobi’s Uhuru Park that Kenya had an obligation to all Africans to stand in the way of the trend towards elected autocracy on the continent.
And then he went on to make this declaration: “One, from today we will transform a national coalition into a resistance movement.
“Two, we will embark on a national campaign of defence of the legitimate government with authority and then put pressure to all its organs.
“Three, boycott the goods and services offered of the businesses who benefited (inaudible) being established.
“Four, we shall convene a people’s assembly for the purpose of judging our way back to constitutional rule and democracy.
::Court overturns Kenya presidential election over ‘irregularities’
“Five, we shall mobilise all progressive forces in the country to ensure that a fresh, free and fair presidential election is organised within 90 days.”
This sets him and his supporters who make up a substantial part, if not a majority, of Kenya’s political body on a collision course with the government.
Calling for both resistance and the establishment of a parallel government of some kind takes the country into dangerously populist territory, even if he has the legal basis for his claims of election chaos.
More than 1,000 Kenyans were killed in political violence after the 2007 polls.
The bloodletting was blamed largely on Mr Kenyatta and Henry Ruto – who were then rivals but now share power.
Mr Odinga’s calls were met with wild enthusiasm by his hard core of supporters – many of whom attended the rally lured in by the prospect of free t-shirts and hats.
They then went on to march through town back to the poorer parts of Nairobi where his support base is strongest but also where tribal rivalries divide communities.
Tyres were set alight and there were reports of some attacks on motorists.