[NorthMountain]

GOP presidential front-runner Donald Trump's tax plan would cost just under $12 trillion over a decade,

Good.

We need to cut the size and scope of government by much more than $12 trillion over the next decade.

[Lurking Libertarian]

We need to cut the size and scope of government by much more than $12 trillion over the next decade.

You can cut taxes, or you can build a border wall and simultaneously increase the size of the military (two things Trump has promised), but I don't see how you can do both.