The 2017 Supreme Court Annulment: What the Numbers Say

The Supreme Court said the IEBC committed 'irregularities and illegalities.' The fresh election that followed was one of the strangest in world history.

On 1st September 2017, Chief Justice David Maraga read out a ruling that shook the continent. By a 4-2 majority, the Supreme Court of Kenya nullified the presidential election held on 8th August 2017. Uhuru Kenyatta's victory of 8,203,290 votes (54.27%) was voided. A fresh election was ordered within 60 days.

No court in Africa had ever overturned a presidential election. The ruling changed Kenyan politics forever.

What the Court Found

The court's detailed judgment, delivered on 20th September 2017, identified several issues with the IEBC's handling of the election:

• Results transmission failures: The electronic results transmission system did not function as required by law
• Unverifiable forms: Many Form 34As (polling station results forms) could not be verified against the electronic copies
• Server access issues: The IEBC's technology provider (OT Morpho, now Idemia) could not adequately explain discrepancies in the server logs
• Constitutional non-compliance: The election was "not conducted in accordance with the Constitution" and the Elections Act

Critically, the court did not find that the results themselves were wrong. It found that the process of transmitting and verifying those results was flawed. The distinction matters: the court said the IEBC could not prove the results were right, not that Kenyatta did not win.

The Numbers Before: August 2017

The August election had strong participation. Out of 19,611,423 registered voters, approximately 15.2 million cast ballots — a turnout of about 77%. The electronic verification system identified 14,641,973 voters: 13,616,129 through biometric identification and 1,025,844 through the presiding officer's manual override.

The August results showed a clear but not overwhelming victory for Kenyatta:

• Uhuru Kenyatta: 8,203,290 votes (54.27%)
• Raila Odinga: 6,762,224 votes (44.74%)
• Six other candidates: 149,108 votes combined (0.99%)
• Rejected ballots: 81,685

Kenyatta won the 50%+1 threshold. He cleared the 25% mark in 35 of 47 counties, well above the constitutional minimum of 24. By every measurable standard, the numbers said he won.

The Numbers After: October 2017

The fresh election on 26th October 2017 was a different country. Raila Odinga boycotted, demanding IEBC reforms. His supporters stayed home. The numbers collapsed:

• Total valid votes: 7,616,217 (down from 15,114,622 — a 49.6% drop)
• Electronic verification: 7,575,806 (down from 14,641,973 — a 48.3% drop)
• Biometric identification: 7,364,360 (down from 13,616,129 — a 45.9% drop)
• Manual overrides: 211,446 (down from 1,025,844 — a 79.4% drop)

The sharp drop in manual overrides is telling. In August, over 1 million voters were verified manually when biometric systems failed. In October, that number fell to 211,446. This suggests that the October election had fewer biometric failures — or that the voters in areas prone to such failures simply did not show up.

How Every Candidate's Numbers Changed

The shifts were dramatic for every candidate on the ballot:

Every single candidate lost votes. But the scale is wildly different. Kenyatta lost 8.8% of his August total. Odinga lost 98.9%. The boycott was devastatingly effective at suppressing opposition turnout.

The Aftermath in Numbers

The Supreme Court upheld the October results on 20th November 2017. But the political fallout continued:

• NASA (Odinga's coalition) rejected the results and called Kenyatta's presidency illegitimate
• Odinga held a mock inauguration on 30th January 2018, declaring himself "the people's president"
• The government shut down three TV stations that attempted to broadcast the ceremony
• The "handshake" between Kenyatta and Odinga on 9th March 2018 finally defused the crisis

The annulment also had lasting effects on election administration. The IEBC faced public scrutiny, and several commissioners resigned. The debate about electronic vs manual results transmission continues to shape every subsequent election.

Lessons From the Annulment

1. Process matters as much as results. The court did not say Kenyatta lost. It said the IEBC could not prove the process was clean.
2. Boycotts change everything. The fresh election produced a 98.26% result that no one considers a real measure of public opinion.
3. 7 million voters were disenfranchised — whether by their own choice (boycott) or by circumstances.
4. Independent verification is critical. If parties had their own parallel tallying data, the petition might have been decided differently.
5. Election technology must be transparent. The failure of the KIEMS transmission system was the core issue the court identified.

The 2017 annulment remains the most significant judicial intervention in Kenyan electoral history. Its effects shaped the 2022 election, where all sides invested heavily in parallel vote tallying. Read more: Election Petitions: From 36 in 2007 to 446 in 2017.

Independent verification changes outcomes. Votrack provides real-time parallel vote tallying across all six electoral positions. Political parties that tracked their own data in 2022 were able to accept or challenge results with confidence. Request a demo to prepare for 2027.