From the other perspective, they think they have the legal right to do so and that they are wanting to limit wasteful spending. This is still very much inline with working within the constitution. How do you think this is king-like behavior?

For that specific case? Pretty simple, many of his actions that held up congressionally appropriated funds were found unconstitutional in a number of federal courts. Add to that there being a seeming intention to 'claim' that power and authority by this administration gives a few flags. I guess I need to know what you definition of a President overstepping his powers would be?