In a historic move, the motion — the culmination of months of open conflict between Gachagua and his boss — was approved by 282 MPs in the 349-member National Assembly, more than the two-thirds required.
There were 44 votes against and one abstention, according to parliament speaker Moses Wetangula.
The motion will now proceed to the upper-house Senate and if approved there, Gachagua would become the first deputy president to be removed from office in this way since impeachment was introduced in Kenya’s revised 2010 constitution.