And now the question occurs, What is the true line of duty with regard to these two candidates? Mr. Van Buren--and I honor him for his trumpet call to the North--sounded the true note, when he said he could not vote for either. Though nominated by opposite parties, they represent substantially the same interest. The election of either would be a triumph of the Slave Power, entailing upon the country the sin of extending Slavery. How, then, shall they be encountered? To my mind the way is plain. The lovers of Freedom, from both parties, and irrespective of all party associations, must unite, and by a new combination, congenial to the Constitution, oppose both candidates. This will be the FREEDOM POWER, whose single object will be to resist the SLAVE POWER. We will put them face to face, and let them grapple. Who can doubt the result? I hear the old political saw, that "we must take the least of two evils." My friend from Ohio [Mr. GIDDINGS] has already riddled this excuse, so that I might well leave it untouched; but I cannot forbear a brief observation. It is admitted, then, that Cass and Taylor both are _evils_. For myself, if two evils are presented to me, I will take neither. There are occasions of political difference, I admit, when it may become expedient to vote for a candidate who does not completely represent our sentiments. There are matters legitimately within the range of expediency and compromise. The Tariff and the Currency are of this character. If a candidate differs from me on these more or less, I may yet vote for him. But the question before the country is of another character. This will not admit of compromise. It is not within the domain of expediency. _To be wrong on this is to be wholly wrong._ It is not merely expedient for us to defend Freedom, when assailed, but our duty so to do, unreservedly, and careless of consequences. Who in this assembly would help to fasten a fetter upon Oregon or Mexico? Who that would not oppose every effort to do this thing? Nobody. Who is there, then, that can vote for either Taylor or Cass?