Mwingi Central MP Gideon Mulyungi has congratulated Edith Nyenze for winning the Kitui West Parliamentary seat by-election.
Mulyungi said Mrs Nyenze had proven herself worthy of the seat.
"I was sure she would clinch the seat despite the low voter turn out, congratulations is in order," Mulyungi said.
He addressed the press in Mwingi town on Tuesday.
Mulyungi had last week said he was confident the Wiper candidate would win the seat by 80%.
Nyenze who contested for the seat on a Wiper party ticket garnered 72.67 percent of the votes cast to convincingly whitewash her four competitors.
The widow to the former area MP proved she had been a significant force in her late husband’s political career when she garnered 14,372 votes beating her closest rival by a whopping 12,326 votes in an election where only 38 percent of the 52,042 registered voters turned up.
Dennis Mulwa, a youthful candidate who ran as an independent came distant second garnering only 2, 046 votes while Robert Mutiso of Narc-Kenya came third with 1,784 votes.
Kitui West IEBC returning officer James Mbai who released the official results at Matinyani Multipurpose Hall declared Mrs. Nyenze the winner and congratulated her.
“I wish to declare Edith Vethi Nyenze as the duly elected Kitui West Member of Parliament-elect because she has garnered the highest number of votes," Mbai said after manual tallying of the results from 143 polling centres.