Ahead of a scheduled hearing in the U.S. on Tuesday, Nigerian President Bola Tinubu filed a response asking the court to disregard records suggesting the person admitted to Chicago State University in the 1970s was female.

Tinubu claimed opponent Atiku Abubakar was trying to “sandbag” him by raising the records in his ongoing challenge to Tinubu’s election over allegedly falsified academic documents.

However, the records came from subpoenaed documents from CSU itself, which show a “Bola Tinubu” who enrolled in 1977 submitted a transcript belonging to a woman.

This and other discrepancies in CSU records, like two different graduation dates and a president who joined the school post-graduation signing Tinubu’s certificate, prompted Abubakar to seek further disclosure.

But Tinubu argued the female transcript issue was a “conspiracy theory” and reason to ignore it for Tuesday’s hearing. Abubakar’s lawyers quickly responded consenting to Tinubu submitting a response but asserting their right to address his claims in court.

The academic controversy has intensified ahead of the U.S. court date, where Abubakar hopes records will bolster his challenge to Tinubu’s presidency over allegedly falsified documents. Tinubu appears to be downplaying the disputes despite glaring inconsistencies emerging from CSU.