Debate about ethical standards for Supreme Court justices has intensified after a series of revelations about undisclosed gifts, luxury travel and property deals. Adam Liptak, who covers the court for The Times, reviews the allegations of misconduct and the growing calls to do something about it.Guest: Adam Liptak, a correspondent covering the United States Supreme Court for The New York Times.Background reading: Revelations about Justice Clarence Thomas’s failure to disclose largess from a Republican donor have highlighted a dilemma.In written testimony sent to the Senate Judiciary Committee, the retired conservative judge J. Michael Luttig called for new ethics rules for Supreme Court justices.For more information on today’s episode, visit nytimes.com/thedaily. Transcripts of each episode will be made available by the next workday.