The "wall" can't be built in a year. If it can, it's not the 2,000-mile long physical wall some Trump supporters have been visualizing.
There may be a case for some additional fencing in certain areas, and a significant increase in the Border Patrol. And, of course, the implementation of the old mantra to "enforce the laws on the books". But a wall? Big waste of money.
But there ARE some laws that should be changed. Switch from chain immigration to skills-based immigration. No more diversity lottery. Guest worker programs for semi-skilled workers. Mandatory E-verify. And changes to help prevent folks here on visas for overstaying their visits.