Jackson Kiplagat Arap Mandago is the current Uasin Gishu senator and former first governor of Uasin Gishu. The divisive Kenyan politician was re-elected governor in 2017 on the Jubilee ticket and later elected as senator in 2022 on a UDA party
Mandago was born in the county of Uasin Gishu. He grew up and went to school in the same county.