LOL I love it when ignorant people question something as obvious as judicial review. The Constitution doesn't say in plain language that even the logically challenged can follow and understand, "The Supreme Court may, when a case is brought before it, rule whether a law is constitutional or not," and because of this, the logically challenged assume no such power exists.
It does. It follows with perfect,unassailable logic from what the Constitution DOES say in plain language about the Court, which is:
"The judicial Power of the United States, shall be vested in one supreme Court, and in such inferior Courts as the Congress may from time to time ordain and establish." (Article III, Section 1.)
What is "the judicial power"? It's the power to try cases and determine facts and law. What does this mean? It means that any case under federal law may be brought before the federal courts, and on appeal before the Supreme Court, which will decide the issue.
Now, suppose that a case is brought on appeal before the Supreme Court. The Court (from which there is no further appeal, except, in criminal cases, to the president for a pardon -- in civil cases no appeal, period) may say the following, after considering the facts and law of the case.
"We rule this way, on the grounds that the law in question conflicts with the Constitution and, the Constitution being the supreme law of the land, is null and void. If a similar case is brought before us in the future, we will rule the same way on the same basis. Although we have no authority to strike down the law in question as such, anyone affected by it may take the matter to court and, upon it reaching this Court on appeal, we will rule as if the law were null and void, so any action on the basis of the law would be a waste of time and energy."
That is the logical, inevitable outcome of the Court having "the judicial power." "Striking down a law as unconstitutional" is just shorthand.