No, not the end of the story.
"..................... Acts of Congress are “presumptively constitutional,” Turner Broadcasting System, Inc. v. FCC, 507 U.S. 1301, 1301 (1993), and the Supreme Com1 has stressed that the presumption of constitutionality accorded to Acts of Congress is “strong.” United States v. Five Gambling Devices Labeled in Part .. Mills,” and Bearing Serial Nos. 593-221,346 U.S . 441 , 449 (1953); see, e.g., Gonzales v. Raich, 545 U.S. 1, 28 (2005) (noting that the “congressional judgment” at issue was “entitled to a strong presumption of validity”). The Supreme Court has explained: “This is not a mere polite gesture. It is a deference due to deliberate judgment by constitutional majorities of the two Houses of Congress that an Act is within their delegated power or is necessary and proper to execution of that power.” Five Gambling Devices Labeled in Part .. Mills,” and Bearing Serial Nos. 593-22i, 346 U.S. at 449.
In light of the presumption of constitutionality, it falls to the party seeking to overturn a federal law to show that it is clearly unconstitutional. See, e.g., Salazar v. Buono, 130 S. Ct. 1803, 1820 (20 1 0) (“Respect for a coordinate branch of Govenm1ent forbids striking down an Act of Congress except upon a clear showing of unconstitutionality.”); Beach Communications, Inc. , 508 U.S. at314-15.
Congress is enabled by the Constitution to make laws. These laws are presumed to be Constitutional until challenged and the court rules otherwise. You can reasonably believe that this is a strong presumption and the court is not eager to find congressional law unconstitutional. Example: Chief Justice Roberts turned himself inside out to find that Obamacare was constitutional.