What appeal does Douglas use in the following quote?

Thus, you see, that up to 1854, when the Kansas and Nebraska bill was brought into Congress for the purpose of carrying out the principles which both parties had up to that time endorsed and approved, there had been no division in this country in regard to that principle except the opposition of the abolitionists.

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Question

What appeal does Douglas use in the following quote?

Thus, you see, that up to 1854, when the Kansas and Nebraska bill was brought into Congress for the purpose of carrying out the principles which both parties had up to that time endorsed and approved, there had been no division in this country in regard to that principle except the opposition of the abolitionists.

Ethos
 Kairos
 Logos
 Pathos