ABUJA, NIGERIA — As U.S. President-elect Donald Trump prepares for his second inauguration on Jan. 20, thousands of miles away in Nigeria his return to power has reignited hope among Biafra secessionists. Some view him as a possible ally in their decades-long battle for autonomy – though at least one analyst thinks they should lower their expectations. On the morning of Nov. 6, Odinaka Nwankwo, a retired footballer, sat on his porch in southeast Nigeria’s Anambra state listening to the results of the U.S. presidential election on his transistor radio. After a few hours, the news broke that Republican candidate