The legislature in Nigeria has not lived up to its bidden. Over the years this arm of government has suffered most from the frequent military interventions since 1966. Its powers are usually usurped by the executive arm under every military regime, thereby making its growth stunted and its members immature. Even under democratic governments, the legislature continues to suffer from similar ills, but this time from leadership instability. Between 1999-2003, the senate, which is the case study, had produced three (3) leaders presiding over its affairs. The reason for this rapid change in leadership is the bane of this research. Data were collected via secondary sources such as Newspaper, magazines, journals, textbooks. It was discovered that frequent executive interference in the affair of the senate, especially the emergence of its leaders among other factors is the reason for the frequent change in leadership.

Keywords: Nigeria, Senate, Leadership