McGee then attempted to have her California judgment enforced by a Texas court through the use of the full faith and credit clause of the United States Constitution.

Texas' main point of contention was the fact that California had not issued service of process to International within its own borders, a theory which had, until recent case law, been correct.

[4] The Court held that California did not violate the due process clause by entering a judgment on the Texas corporation.

The court relied on the fact that the suit was based on "substantial connection[s]" with California, particularly the facts that the contract was delivered to McGee's son while he was a resident of California, International continued to maintain a financial relationship with McGee's son by collecting his premium payments, and that the policy holder was a resident of the state when he died.

This decision reflected a growing and increasingly more sophisticated economy, in which more commercial transactions were taking place across state lines.