Pennsylvania State Treasurer Bob Casey, running for the Senate as a pro-life Democrat, is maintaining a golden silence on the nomination of Judge Sam Alito even within his own party circles. A fellow Pennsylvania Democrat privately sought out Casey’s views on Alito last week and was told the candidate had nothing to say. Sooner or later, however, Casey will have to take a stand on Alito, whose opinions on the 3rd U.S. Circuit Court of Appeals have tended to be pro-life. As a mainstream Democrat, Casey will be under pressure to take a critical view of Alito by liberal groups waging an all-out campaign and promising to do anything to stop him. “You name it, we’ll do it,” said Nan Aron, president of the Alliance for Justice.