Since declaring his interest in the presidential race on the platform of All Progressives Congress last week, House of Representatives Speaker Aminu Tambuwal has faced a great deal of pressure from supporters of former Head of State, General Muhammadu Buhari, to shelve his ambition. Buhari is seen as the leading aspirant of the party and his supporters see the entry of fellow North-west man, Tambuwal, into the race as a possible upset that should not be allowed.