Talks about evil people taking pleasure in people doing evil (sounds like the democrats to me) vs 19-21 defines these people as unbelievers in God
2 Cor 6:14 Be ye not unequally yoked together with unbelievers: for what fellowship hath righteousness with unrighteousness? and what communion hath light with darkness?
15 And what concord hath Christ with Belial? or what part hath he that believeth with an infidel?
16 And what agreement hath the temple of God with idols? for ye are the temple of the living God; as God hath said, I will dwell in them, and walk in them; and I will be their God, and they shall be my people.
17 Wherefore come out from among them, and be ye separate, saith the Lord, and touch not the unclean thing; and I will receive you,
18 And will be a Father unto you, and ye shall be my sons and daughters, saith the Lord Almighty.
Note that nowhere in context does the bible limit verse 14 just to marriage. We are not to form long term binding relationships (contracts, marriages, party memberships, long term close friendships etc) with unbelievers. Are democrats believers? Not as far as I can see. Look at the witness of their lives. The official party platform reads like the last half of Romans 1.
vs 15-17 reinforce this. God tells us not to be part of the democrats. If we vote for a democrat for an elected office we are entering a contract with him to reperesent us and our values for the term of office. This is expressly forbidden.
On the flip side it is much easier to find believing republicans (all the ones I know are Christian). Even a democrat who confesses to be Christian cannot be trusted because if he really was Christian why would he be yoking himself to the party of evil?
Not much time to answer this today but those are the main two.