Donald Trump walked into the Oval Office on the first Monday of his presidency less than 100 hours ago, and what has ensued is a frenzy of focused activity aimed at national and job security. Through a series of executive actions, the president has been checking off his campaign promises like a Friday to-do list before a three-day weekend. Authorize building the wall, check. Streamline federal regulations on building pipelines, check. Order a regulatory streamlining plan from the Commerce Department to ease burdens on manufacturers increasing the number of jobs, check. Implement “extreme vetting” of asylum seekers from certain Middle...