Question: What Attorney General, born in 1880 in Massachusetts, served under the President who signed the Kansas-Nebraska Act, and who is generally regarded by historians to be among the worst of US Presidents?

full_context: Document 1: Jefferson Davis: Jefferson Davis (born Jefferson Finis Davis; June 3, 1808 – December 6, 1889) was an American politician who served as the President of the Confederate States from 1861 to 1865. He was a member of the Democratic Party who represented Mississippi in the United States Senate and the House of Representatives prior to becoming president of the Confederacy. He was the 23rd United States Secretary of War, serving under U.S. President Franklin Pierce from 1853 to 1857.
Document 2: Confederate States Attorney General: The Attorney General of the Confederate States of America was a member of the Confederate cabinet. The office of Attorney General of the Confederate States was created by the statute which established the Department of Justice. By the establishing statute, it was "the duty of the Attorney General to prosecute and conduct all suits in the Supreme Court, in which the Confederate States [was] concerned, and to give his advice and opinion upon questions of law, when required by the President of the Confederate States, or when requested by any of the heads of departments, touching any matters that may concern their departments on subjects before them." In this respect, his duties were the same as those of the United States Attorney General. But additionally, he had "supervisory power over the accounts of the marshals, clerks and officers of all the courts of the Confederate States, and all claims against the Confederate States."
Document 3: Presidency of Franklin Pierce: The presidency of Franklin Pierce began on March 4, 1853, when Franklin Pierce was inaugurated as President of the United States, and ended on March 4, 1857. Pierce, a Democrat from New Hampshire, took office as the 14th United States president after routing Whig Party nominee Winfield Scott in the 1852 presidential election. Seen by fellow Democrats as pleasant and accommodating to all the party's factions, Pierce, then a little-known politician, won the presidential nomination on the 49th ballot of the 1852 Democratic National Convention.
Document 4: Franklin Pierce: Franklin Pierce (November 23, 1804October 8, 1869) was the 14th President of the United States (1853–57). Pierce was a northern Democrat who saw the abolitionist movement as a fundamental threat to the unity of the nation. His polarizing actions in championing and signing the Kansas–Nebraska Act and enforcing the Fugitive Slave Act alienated anti-slavery groups while failing to stem conflict between North and South setting the stage for Southern secession and the US Civil War. Historians and other scholars generally rank Pierce among the worst of US Presidents.
Document 5: John Creswell: John Andrew Jackson Creswell (November 18, 1828December 23, 1891) was an American politician and abolitionist from Maryland, who served as United States Representative, United States Senator, and as Postmaster General of the United States appointed by President Ulysses S. Grant. Creswell is considered to be one of the ablest, if not the best, Postmaster General in United States history. Creswell modernized the U.S. Postal system to adapt to an expanding demand for increased postal routes throughout the Western states and remain competitive worldwide. Creswell also integrated the U.S. Postal system appointing both male and female African American postmasters throughout the United States, giving them significant positions of federal authority. Sweeping and constructive reforms of the U.S. Postal system took place during Creswell's tenure, including securing fair competition among Star Route carriages, and the abolishment of the franking system. Creswell developed a codified classification system of offenses against postal laws. Creswell streamlined and reduced postal costs making the United States Postal System run efficiently creating a fair pricing system domestically, and reducing international mailing prices. Creswell developed and implemented the United States first penny postcard.
Document 6: Confederate States Secretary of War: Confederate President Jefferson Davis was twenty-third Secretary of War of the United States, serving under U.S. President Franklin Pierce from March 7, 1853 until March 4, 1857. However, he never served in this capacity in the Confederate States.
Document 7: John Brown (abolitionist): John Brown (May 9, 1800 – December 2, 1859) was an American abolitionist who believed and advocated that armed insurrection was the only way to overthrow the institution of slavery in the United States. Brown first gained attention when he led small groups of volunteers during the Bleeding Kansas crisis of 1856. Dissatisfied with the pacifism of the organized abolitionist movement, he said, "These men are all talk. What we need is action—action!" During the Kansas campaign, Brown commanded forces at the Battle of Black Jack and the Battle of Osawatomie. He and his supporters killed five supporters of slavery in the Pottawatomie massacre of May 1856 in response to the sacking of Lawrence by pro-slavery forces.
Document 8: 33rd United States Congress: The Thirty-third United States Congress was a meeting of the legislative branch of the United States federal government, consisting of the United States Senate and the United States House of Representatives. It met in Washington, D.C. from March 4, 1853, to March 4, 1855, during the first two years of the administration of U.S. President Franklin Pierce. During this session, the Kansas-Nebraska Act was passed, an act that soon led to the creation of the Republican Party. The apportionment of seats in the House of Representatives was based on the Seventh Census of the United States in 1850. Both chambers had a Democratic majority.
Document 9: Cassius Marcellus Clay (politician): Cassius Marcellus Clay ( ; October 19, 1810 – July 22, 1903), nicknamed the "Lion of White Hall", was a Kentucky planter, politician, and emancipationist who worked for the abolition of slavery. He freed the slaves that were handed down as his inheritance from his father. Those freed slaves were allowed to stay and were paid a wage. He was appointed by President Abraham Lincoln as the United States minister to Russia during the American Civil War, and is credited with gaining Russian support for the Union.
Document 10: Caleb Cushing: Caleb Cushing (January 17, 1800 – January 2, 1879) was an American diplomat who served as a U.S. Congressman from Massachusetts and Attorney General under President Franklin Pierce.
Document 11: Abraham Lincoln: Abraham Lincoln ( ; February 12, 1809 – April 15, 1865) was an American politician and lawyer who served as the 16th President of the United States from March 1861 until his assassination in April 1865. Lincoln led the United States through its Civil War—its bloodiest war and perhaps its greatest moral, constitutional, and political crisis. In doing so, he preserved the Union, paved the way to the abolition of slavery, strengthened the federal government, and modernized the economy.
Document 12: Lewis Cass: Lewis Cass (October 9, 1782June 17, 1866) was an American military officer, politician, and statesman. He represented Michigan in the United States Senate and served in the Cabinet of Andrew Jackson and James Buchanan. He was also the 1848 Democratic presidential nominee and a leading spokesman for the Doctrine of Popular Sovereignty, which held that the people in each territory should decide whether to permit slavery.
Document 13: Elihu B. Washburne: Elihu Benjamin Washburne (September 23, 1816 – October 23, 1887) was an American politician and diplomat. A member of the Washburn family, which played a prominent role in the early formation of the United States Republican Party, he served as a congressman from Illinois before and during the American Civil War. He was a political ally of President Abraham Lincoln and General (later President) Ulysses S. Grant. During Grant's administration, Washburne was the 25th United States Secretary of State, briefly in 1869, and was the United States Minister to France from 1869 to 1877.
Document 14: Tulinabo S. Mushingi: Tulinabo Salama Mushingi (born August 4, 1956) is an American diplomat who currently serves a joint appointment as United States Ambassador to Senegal and United States Ambassador to Guinea-Bissau. He previously served as the United States Ambassador to Burkina Faso from 2013 to 2016. He also served in the executive offices of Secretaries of State John F. Kerry and Hillary Clinton. In February 2017, President Donald Trump nominated Mushingi to serve concurrently as United States Ambassador to Senegal and United States Ambassador to Guinea-Bissau. Mushingi had originally been nominated for the position by outgoing President Barack Obama in January 2017. When Trump took office, he withdrew Mushingi's nomination before renominating him for the same position. He was confirmed by the United States Senate by voice vote on May 18, 2017.
Document 15: 1856 State of the Union Address: The 1856 State of the Union Address was given by Franklin Pierce, the 14th President of the United States. It was presented to the 34th United States Congress by the Clerk of the United States House of Representatives. He said, "it is necessary only to say that the internal prosperity of the country, its continuous and steady advancement in wealth and population and in private as well as public well-being, attest the wisdom of our institutions and the predominant spirit of intelligence and patriotism which, notwithstanding occasional irregularities of opinion or action resulting from popular freedom, has distinguished and characterized the people of America." He also stated, "In the long series of acts of indirect aggression, the first was the strenuous agitation by citizens of the Northern States, in Congress and out of it, of the question of Negro emancipation in the Southern States." President Pierce supported the Kansas-Nebraska act. This neutralized the issue of slavery in the central states, and did not say whether to allow it or not.
ground_truth: Caleb Cushing