I do. I see examples every day, especially among leftists/politicians - he who complains the most about other's defects is likely to have the defects he complains about (loose paraphrase).
That is why I didn't think it apropos for Trump - he wasn't making that sort of statement - merely pointing out that Christians are being persecuted against (another refreshing bit of Truth that most politicians steer clear of).
That is not what the quote means:
By "protest," Gertrude doesn't mean "object" or "deny"—these meanings postdate Hamlet. The principal meaning of "protest" in Shakespeare's day was "vow" or "declare solemnly," a meaning preserved in our use of "protestation." When we [sic] smugly declare that "the lady doth protest too much," we almost always mean that the lady objects so much as to lose credibility. Gertrude says that Player Queen affirms so much as to lose credibility. Her vows are too elaborate, too artful, too insistent.
To me, the quote from Mr. Trump about his faith seemed too over the top for credibility. Some other Freepers suggested that I watch the whole interview, which I will try to do at a later time.