Opposition leader Sadiq al-Mahdi says army would relinquish power if current stalemate were broken.
Meeting key to ironing out differences on formation of a unity govt agreed last year.
Desperate for cash, Mariam Nabatanzi turns a hand to everything.
The 76-year-old enters a crowded race for the 2020 Democratic nomination.
Schools and businesses ordered closed in region as the country braces for storm.