Former Deputy President Rigathi Gachagua has dismissed critics watering down Linda Mwananchi leader Edwin Sifuna on grounds of age, saying he is a serious and strong presidential contender.

The Democracy for Citizens Party (DCP) leader yesterday said they will work on a comprehensive arithmetic that will send President William Ruto home early in next year’s General Election, even as he stated that he has no problem deputising Sifuna and vice versa.