If one is going to accuse another of being a thief, one must be able to back up the accusation, or there ought to be consequences for the accuser. Whether it breaches a legal standard or not, slanderous or libelous commentary is often allowed in America's political environment because it gets passed off as free speech. There are no rules for fair play
Do you recall when Sen. Harry Reid likened the GOP to slavery sympathizers because he couldn't handle Obamacare criticisms? (See my Examiner column published here). His disgraceful words are largely forgotten.
Consider Vice President Joe Biden's spoken gem on the campaign trail, telling African-American voters that Republicans are "...going to put y'all back in chains." Pundits dismissed the remark as one more bone-headed comment by Biden, then Romney got crucified for citing an accurate statistic about the extent of government transfer payments. Romney's utterance, wasn't populist so the opposition could vilify him, yet Biden's reprehensible remarks left him unscathed.
Political slander often occurs after Conservatives disclose ideas to reform the welfare state or tax system. Some ideas are better than others, but there's always a number of Leftist character assassins that cry "racism!" And honest advocates to reduce voter fraud often attract a full scale tar job, replete with charges of "voter suppression."
If you have a better remedy; please let me know.