Martha Karua has spoken minutes after the Supreme Court judges upheld William Ruto's win.
Through her Twitter, Karua said although she does not agree with the verdict, she respects the court's decision.
"The court has spoken. I respect but disagree with the findings."
The Supreme Court of Kenya on Monday confirmed the election of William Ruto as the fifth President of the Republic of Kenya.
Reading the verdict on Monday, Chief Justice Martha Koome said Ruto garnered 50 percent plus one vote cast.
Ruto had garnered 7.1m while Raila Odinga garnered 6.9m as declared by the IEBC.
The confirmation followed an intense 14-day process in which lawyers representing Azimio's Raila Odinga, the Independent Electoral and Boundaries Commission, and President-elect William Ruto did battle.
The Supreme Court received nine petitions, of which eight challenged Ruto's election, while one support his victory.
Chief Justice Martha Koome said they would consolidate seven petitions into one because they raised similar issues, while two were struck out.
They singled out nine key issues the petitioners wanted determined.
The issues-questions included: Did the IEBC technology meet integrity and verifiability standards? Was there interference in the transmission of Forms 34A? Was there a difference between the transmission of Forms 34A uploaded and those received?
Other questions: Did the postponement of Mombasa and Kakamega governor elections and other polls result in voter suppression? Did the president-elect get 50 percent plus one vote of the votes cast?
Outdoing Deputy President Ruto was declared President-elect on August 15 by Independent Electoral and Boundaries Commission chairman Wafula Chebukati.
Ruto garnered 7,176,141 votes (50.49 percent), defeating Azimio flagbearer Raila Odinga who had 6,942,930 votes, representing (48.85 percent).
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