This guy?
For real?
Seal the borders.
Deport ANYONE and EVERYONE here illegally.
Appoint judges at all levels that uphold the Constitution
AS WRITTEN.
Amend the Constitution so that every lawmaker must provide a reference to the Constitutional clause that permits the bill that they are submitting for passage. Submit enough Unconstitutional bills and you lose your job.
That's just off the top of my head.