Donald Trump’s nominee to run the commerce department, Howard Lutnick, said on Wednesday that Canada and Mexico can avoid looming US tariffs if they act swiftly to close their borders to fentanyl, while vowing to slow China’s advancement in artificial intelligence. Lutnick, a billionaire Wall Street CEO, at his US Senate confirmation hearing said he has advised Trump to pursue across-the-board tariffs country-by-country to restore “reciprocity” to America’s trading relationships and said he would erect stronger curbs on China’s access to US technology, including advanced AI semiconductors. Lutnick said Trump’s Saturday deadline for imposing 25% tariffs on goods from Canada…