WASHINGTON  In expansive remarks at a law school in Florida, Justice Clarence Thomas on Tuesday vigorously defended the Supreme Court’s recent campaign finance decision.

And Justice Thomas explained that he did not attend State of the Union addresses  he missed the dust-up when President Obama used the occasion last week to criticize the court’s decision  because the gatherings had turned so partisan.

Justice Thomas responded to several questions from students at Stetson University College of Law in Gulfport, Fla., concerning the campaign finance case, Citizens United v. Federal Election Commission. By a 5-to-4 vote, with Justice Thomas in the majority, the court ruled last month that corporations had a First Amendment right to spend money to support or oppose political candidates.

“I found it fascinating that the people who were editorializing against it were The New York Times Company and The Washington Post Company,” Justice Thomas said. “These are corporations.”