Mike Waltz reveals how Nicki Minaj joined fight against Christian persecution in Nigeria U.S. Ambassador to the U.N. Mike Waltz joins ‘The Faulkner Focus’ to expose the persecution of Christians in Nigeria and explain how rapper Nicki Minaj is lending her voice to the cause. NEW You can now listen to Fox News articles! U.S. Ambassador to the United Nations Mike Waltz is opening up about his unlikely partnership with rapper Nicki Minaj and how the two ended up aligned in calling attention to the