Chief Justice John G. Roberts Jr. said Tuesday that the scene at President Obama’s State of the Union address was “very troubling” and that the speech had “degenerated to a political pep rally.” In his speech, the president chided the Supreme Court, with the justices seated before him, for its decision on a campaign finance case. Responding to a University of Alabama law student’s question, Chief Justice Roberts said that anyone was free to criticize the court, but that “the image of having the members of one branch of government standing up, literally surrounding the Supreme Court, cheering and hollering while the court — according the requirements of protocol — has to sit there expressionless, I think is very troubling.”