Donald Trump doubled down Sunday on hard-line campaign pledges to impose trade tariffs and carry out mass deportations, while dangling the idea that the United States could withdraw from NATO. In his first formal television interview -- and just six weeks before he takes office -- Trump again signaled that US support for Ukraine will scale back, saying he will "probably" cut the aid helping Kyiv repel the Russian invasion. Trump also said he would "very quickly" look at pardons for supporters jailed for storming the US Capitol after his 2020 election defeat to Joe Biden. The interview on NBC's...