The Republican candidates in South Carolina have spent the last week beating each other up over their supposed untrustworthiness. This has had particular impact on Senator Ted Cruz (R-TX), who runs under the slogan "TrusTED" and talks ad infinitum about his consistently conservative record. Polls show that the charges against Cruz have slowed his ascent in South Carolina. Meanwhile, Cruz slaps Republican frontrunner Donald Trump for his alleged lies on the campaign trail to conservative voters; Trump denounces those accusations and doubles down on the charge that Cruz is the true liar. And then there's Marco Rubio, sniping at Cruz...