Which passage in the bible does it say that Christians can bear false witness against their political rivals?

It doesn't. The Bible speaks of loving your neighbor. There is no love if you bear false witness against them.

GOD bless

Hmmmm interesting you think McCain and Palin are Christians and lies.So i guess it means Obama is a Muslim and is Honest.As long as there are politicians and people seeking power there will always be false Claims made against there Opponent and Trust me Obama is as bad as any one so it looks to me like we have a case of the pot calling the kettle black.

It makes me wonder what has happened in America, the fact that people in the developed world could actually be manipulated into believing such lies.

by way of fact they are intimidated. it somewhat is now no longer ok for them to slaughter pagans like they did during the witch burnings (this grew to become into all accomplished for administration). it somewhat is sort of frowned upon now...they are dropping their following and it scares them, in particular by way of fact their ideals can now no longer be compelled upon pagans with torture and homicide. that's a bloody historic previous the Christians carry. And, they in many cases fail to realize all of their myths (the bible), trip journeys and parent heads (which comprise Jesus) are molded after lots older pagan thoughts and traditions. Or, to be relatively much less diffused, ripped off and bastardized variations of pagan ideals, and maximum are purely stolen myths and trip journeys that have purely had the names replaced. anybody with any training knows this. perchance lack of understanding is the respond to your question.

It is in the ten commandments that do not lie.

May I ask you to tell what are those lies? This is an unpolite generalization

no where.