How did Texas v Johnson get to the Supreme Court?

Yes. Judicial review simply means a court exercises its authority to determine whether a law that is relevant to a case under the court's review conforms to the principles of the US Constitution. Any court, federal or state, may evaluate any statute, regardless of whether it is a municipal, state or federal law, as long as the law is directly related to a case before the court, and the court has proper jurisdiction (legal authority) over the case. Laws that are deemed unconstitutional may be nullified (overturned and rendered unenforceable), although the decision is likely to be appealed by the whichever government entity passed the law.

In Texas v. Johnson, the US Supreme Court used judicial review to determine whether the Texas Venerated Objects Law, under which Greg Johnson was convicted, infringed on the First Amendment right of free speech and political expression. The Court determined the law was unconstitutional and nullified it.

Case Citation:

Texas v. Johnson, 491 US 397 (1989)

For more information, see Related Questions, below.