Rooker v. Fidelity Trust Company…
“ It is conceded that there was no effort to question the validity of any treaty or law of, or authority exercised under, the United States. But the plaintiffs insist that the validity of a statute of Indiana relating to conclusions stated in pleadings and the mode of securing better statements (chapter 322, Acts 1913; chapter 62, Acts 1915) was drawn in question by them on the ground of the statute's repugnance to various provisions of the Constitution of the United States and that the court upheld and applied the statute. ”
