Donald Trump is right to call for rebuilding America's depleted military arsenal. The United States has fought wars for the past 15 years and in recent years shrank its military budget. Our country's weapons (nuclear and non-nuclear) should be expanded to meet growing threats int he world. Trump is correct about the need to expand our capabilities.
The U.S. military is the largest in the world and there is no need to build up American weapons. Trump does not need to call for an arms race, it shows an attitude of defensive insecurity if he tries to add more weapons. Plus the cost of our military could be used on other national projects and support for the country.
I believe the US already has enough nuclear weapons to destroy anything they would need to. There is such a thing as overkill. If we have enough to destroy the majority of the globe, at this point, why spend money on building more? That money could be put to much better use.
The United States has by far the strongest military force in the world. The United States has all that it needs to protect its interests around the world. To build up arms now would divert tax dollars from other things that Americans can do with their tax dollars. It is best to use resources for other things.