Why Is Aisha Buhari Not Campaigning Ahead Of The 2019 Elections?

By this time in 2015, Buhari's wife, Aisha was all over the place campaigning for her husband, to the extent of frying akara and yam. Her daughter was very vocal on twitter.

Fast forward to 2019, no one now hears from her or Zahra. Wat could be the problem?

We now see Dolapo Osibanjo representing her everywhere, and Kiki now taken over Zahra donating wheelchair upandan.

Could it be that the first family are tired of Buhari? Or Aisha is very sick as rumoured? Or Nnamdi Kanu's theory possible?

Please we need answers