Something like 1/3 of the Democrats in the House fit that description.
Yep, they use their religion to help them get elected then ignore it.
Pelosi said in an interview that she decides things for herself based on her own understanding after considering what the Catholic Church says, what the Bible says, and how she feels after praying about something. The basic foundation for her is Self and Self Alone which is the real basis of all Protestant and Protestant derived "Christianity".
They've already rendered their mind and soul to Caesar in order to gain power so what they claim to believe is irrelevant, really. For them, the highest possible authority is Self, that's it, that's all.