US Republican presidential candidate Donald Trump has laid out various “crises” he says are facing the country, vowing in his nomination acceptance speech to solve them all. “We have an inflation crisis that is making life unaffordable, ravaging the incomes of working and low income families, and crushing, just simply crushing our people like never before,” Trump told a rapt audience on the final night of the Republican National Convention on Thursday evening. “We also have an illegal immigration crisis, and it’s taking place right now as we sit here in this beautiful arena. It’s a massive inv…