Question: When did the political party that favored harsh punishment of southern states after the Civil War, gain control of the House?

Knowledge 1: Reconstruction era
Presidents Abraham Lincoln and Andrew Johnson both took moderate positions designed to bring the South back into the union as quickly as possible, while Radical Republicans in Congress sought stronger measures to upgrade the rights of African Americans, including the Fourteenth Amendment to the United States Constitution, while curtailing the rights of former Confederates, such as through the provisions of the Wade -- Davis Bill. Johnson followed a lenient policy toward ex-Confederates. Lincoln's last speeches show that he was leaning toward supporting the enfranchisement of all freedmen, whereas Johnson was opposed to this. [SEP] Knowledge 2: 2010 United States House of Representatives elections
Republicans regained control of the chamber they had lost in the 2006 midterm elections, picking up a net total of 63 seats and erasing the gains Democrats made in 2006 and 2008. Although the sitting U.S. President's party usually loses seats in a midterm election, the 2010 election resulted in the highest loss of a party in a House midterm election since 1938, and the largest House swing since 1948. This also happened to be the Republicans' largest gain in House seats since 1938. Republicans gained the most in New York state where they picked up six seats, defeating five incumbents and winning an open Democratic district. The heavy Democratic Party losses were attributed to anger with President Obama, opposition to the Affordable Care Act, large budget deficits and the weak economy. This was also the third consecutive midterm election in a president's first term where the Republican Party has made gains in the House of Representatives, as well as the second consecutive midterm election where party control of the said chamber changed hands. Notable freshmen included future Senators Cory Gardner, Todd Young, James Lankford, and Tim Scott, future Governor of Delaware John Carney, future Director of the Office of Management and Budget Mick Mulvaney, future Secretary of State Mike Pompeo, future Lieutenant Governor of Arkansas Tim Griffin, and future Louisiana Attorney General Jeff Landry.
Knowledge 1: Reconstruction era
Presidents Abraham Lincoln and Andrew Johnson both took moderate positions designed to bring the South back into the union as quickly as possible, while Radical Republicans in Congress sought stronger measures to upgrade the rights of African Americans, including the Fourteenth Amendment to the United States Constitution, while curtailing the rights of former Confederates, such as through the provisions of the Wade -- Davis Bill. Johnson followed a lenient policy toward ex-Confederates. Lincoln's last speeches show that he was leaning toward supporting the enfranchisement of all freedmen, whereas Johnson was opposed to this. [SEP] Knowledge 2: Kansas–Nebraska Act
The Kansas -- Nebraska Act divided the nation and pointed it toward civil war. The Act itself virtually nullified the Missouri Compromise of 1820. The turmoil over the act split both the Democratic and Whig parties and gave rise to the Republican Party, which split the United States into two major political camps, the Republican North and the Democratic South.
Knowledge 1: Reconstruction era
Presidents Abraham Lincoln and Andrew Johnson both took moderate positions designed to bring the South back into the union as quickly as possible, while Radical Republicans in Congress sought stronger measures to upgrade the rights of African Americans, including the Fourteenth Amendment to the United States Constitution, while curtailing the rights of former Confederates, such as through the provisions of the Wade -- Davis Bill. Johnson followed a lenient policy toward ex-Confederates. Lincoln's last speeches show that he was leaning toward supporting the enfranchisement of all freedmen, whereas Johnson was opposed to this. [SEP] Knowledge 2: Sino-Tibetan relations during the Ming dynasty
China Daily, a CCP-controlled news organization since 1981, states in a 2008 article that although there were dynastic changes after Tibet was incorporated into the territory of Yuan dynasty's China in the 13th century, "Tibet has remained under the jurisdiction of the central government of China." It also states that the Ming dynasty "inherited the right to rule Tibet" from the Yuan dynasty, and repeats the claims in the Mingshi about the Ming establishing two itinerant high commands over Tibet. China Daily states that the Ming handled Tibet's civil administration, appointed all leading officials of these administrative organs, and punished Tibetans who broke the law. The party-controlled People's Daily, the state-controlled Xinhua News Agency, and the state-controlled national television network China Central Television posted the same article that China Daily had, the only difference being their headlines and some additional text.

Answer: the 2010 election