Jubilee party candidate for Kibra by-election McDonald Mariga faced the first major test in a constituency perceived to be an opposition stronghold.
Vehicles belonging to his official campaign team members were pelted with stones by rowdy youths in an incident that gives a glimpse of what could happen before November.
Independent Electoral and Boundaries Commission has slated the polls for November 7th, with Deputy President William Ruto and Raila Odinga's rivalry ignited in the polls.
Tyres were lit near a huge billboard bearing Mariga's name with badly smashed vehicles also spotted in one of the wards where Jubilee team had scheduled campaigns.
The chaos came just three days after ODM leaders stormed IEBC offices demanding for official voters register. IEBC agreed to avail it by next week.
Embakasi East MP Paul Ongili alias Babu Owino was heard in a viral clip warning IEBC against mishandling Kibra polls, insisting that ODM expects nothing short of 70 per cent victory.
Campaigns in the region have seen a section of Jubilee leaders support ODM candidate Imran Okoth, despite the fact that President Uhuru Kenyatta endorsed Mariga.
ODM leader Raila Odinga, who led the region when it was part of Lang'ata constituency, has deployed a campaign team led by Makadara MP George Aladwa.
The ODM party is keen to retain the seat which was left vacant following the death of Ken Okoth in July. Okoth was serving his second term on ODM ticket.
Divisions rocking the Jubilee team were precipitated by the fact the Deputy President William Ruto is the main sponsor of Mariga, a former footballer.
Others in the race include Raila's former aide Eliud Owalo of Amani National Congress and Eng Ramadhan Khamisi of Ford Kenya party.