A frontrunner in the race for the New Patriotic Party (NPP) chairmanship slot, Dr Charles Wereko Brobbey (aka Tarzan) has issued a stern warning to nana Addo Dankwa Akufo Addo, the party�s flagbearer for the 2008 general elections and Mr Alan Kwadwo Kyeremanteng, also a one-time flagbeaer aspirant not to interfere in the party�s congress slated for Saturday, February 27, 2010.