Lincoln's first inaugural address is fun. He is the only president to call for a constitutional amendment to explictly protect slavery.

I will venture to add that to me the Convention mode seems preferable, in that it allows amendments to originate with the people themselves, instead of only permitting them to take or reject propositions, originated by others, not especially chosen for the purpose, and which might not be precisely such as they would wish to either accept or refuse. I understand a proposed amendment to the Constitution, which amendment, however, I have not seen, has passed Congress, to the effect that the federal government shall never interfere with the domestic institutions of the States, including that of persons held to service. To avoid misconstruction of what I have said, I depart from my purpose not to speak of particular amendments, so far as to say that holding such a provision to now be implied constitutional law, I have no objection to its being made express and irrevocable.

He also threatened the south with invasion if they tried to secede or stop paying federal taxes.

I therefore consider that in view of the Constitution and the laws, the Union is unbroken; and to the extent of my ability I shall take care, as the Constitution itself expressly enjoins upon me, that the laws of the Union be faithfully executed in all the States. Doing this I deem to be only a simple duty on my part; and I shall perform it, so far as practicable, unless my rightful masters, the American people, shall withhold the requisite means, or in some authoritative manner, direct the contrary. I trust this will not be regarded as a menace, but only as the declared purpose of the Union that will constitutionally defend and maintain itself.

In doing this there needs to be no bloodshed or violence; and there shall be none, unless it be forced upon the national authority. The power confided to me will be used to hold, occupy, and possess the property and places belonging to the government, and to collect the duties and imposts; but beyond what may be necessary for these objects, there will be no invasion -- no using of force against or among the people anywhere.