UDA leaders from across the country arrived at Bomas of Kenya on Friday ready for the big day.
Their party leader, President William Ruto will be presiding over the United Democratic Alliance party's National Governing Council meeting.
From MCAs, MPs, Women Representatives, Senators and Governors are arrived at Bomas for the event.
The UDA party is holding its first National Governing Council meeting since Ruto romped to power in last year's Presidential polls.
The meeting of the NGC is set to endorse proposed changes to the UDA constitution including picking two more deputy party leaders.