Kalonzo Musyoka's Wiper Party is not taking chances in the Kitui West Monday's by-election.
The Party is keen in recapturing the seat that was left vacant following the death of Francis Nyenze.
Nyenze, a close ally to Kalonzo died on December 6, 2017 after long battle with colon cancer.
Nyenze's wife Edith Vethi is among the five candidates eyeing the seat in Monday's by -election.
Kalonzo's party has been drumming support for Vethi Nyenze for the last two months.
Kalonzo has toured Kitui West four times in one month campaigning for Vethi.
According to political analyst Peter Ngure, Kalonzo is keen to ensure that he continues to dominate the region politics by wining the Kitui West seat.
Ngure notes that Kalonzo's popularity and confidence will increase should Vethi Nyenze clinch the seat.
"The win will give Kalonzo confidence and stamp his authority as the king-pin in Ukambani politics," said Ngure.
The analyst said Kalonzo's 2022 presidential bid hopes will be increased should Vethi Nyenze clinch the Kitui West seat in Monday by-election.
"We are likely to see Kalonzo's next political step basing on the results of the Kitui West by-election on Monday," he said.
The analyst, however, notes that Kalonzo's 2022 bid will suffer if his party loses in the by-election.
He said Kalonzo's political misery will continue if Vethi Nyenze is defeated on Monday.
Last week, Kalonzo alongside Amani National Congress party leader Musalia Mudavadi and Bungoma senator Moses Wetangula campaigned for Vethi in Kabati and Kitheka.
Kalonzo pleaded with locals to vote Vethi, saying that she is a performer after long service in the teaching profession and that she will not let locals down if they elect her.
The Wiper party leader said that Vethi's win will cement Wiper party's popularity in the region.
Five candidates are battling for the seat in the Monday by-election.
According to IEBC there are 53,000 registered voters distributed in 143 polling stations in Kitui West.
Kitui West Returning Officer James Mbai said all is set for the by-elction.
He said polling centres will open at 6.00am and close at 5.00 pm.