Law experts differ on Joyce Banda''s move to nullify elections

Read Malawi's constitution here Try to find why some law experts says   Banda is abusing her  power to nullify elections lies.
 Section 88 of Malawi Constitution : Responsibility of the President

88.--(1) The President shall be responsible for the observance of the provisions of this Constitution by the executive and shall, as Head of State, defend and uphold the Constitution as the supreme law of the Republic.
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(2) The President shall provide executive leadership in the interest of national unity in accordance with this Constitution and the laws of the Republic.

(5) The President and members of the Cabinet shall not use their respective offices for personal gain or place themselves in a situation where their material interests conflict with the responsibilities and duties of their offices.