"When Chief Justice Renato Corona takes the witness stand in his impeachment trial, he will have nothing that can destroy President Benigno Aquino III, Malacanang said Wednesday. “Nada (nothing),” Palace spokesman Edwin Lacierda said when asked if Corona has the goods on Aquino." (Source: Link)
Well, I do agree with Lacierda. But only because there's nothing more to be destroyed.
PNoy has already destroyed his own reputation by being a vindictive president, conducting a trial through media, and generally performing below average in solving the country's socioeconomic woes.
Seriously, there is absolutely no need for the Palace to make itself known. It should just let the impeachment trial play out and not butt in.