The makeup of Congress changes every two years when voters elect Representatives in the House and some members of the U.S. Senate. So which party controls the U.S. House of Representatives now? Which party has the power in the U.S. Senate?

116th Congress – 2019 and 2020 Democrats took control of the House of Representatives in the midterm elections of 2018, though Republicans slightly increased their Senate majority. White House: Republican (Donald Trump)

Republican (Donald Trump) House: As of October 2019, Republicans held 197 seats, Democrats held 234 seats; there was one independent (a former Republican) and three vacancies.

As of October 2019, Republicans held 197 seats, Democrats held 234 seats; there was one independent (a former Republican) and three vacancies. Senate: As of October 2019, Republicans held 53 seats, Democrats held 45 seats; there were two independents, both of whom caucused with the Democrats. *Note: Rep. Justin Amash was elected a Republican to represent Michigan 3rd District in 2011, but changed to independent on July 4, 2019.

115th Congress – 2017 and 2018 Republicans held both chambers of Congress and the presidency but accomplished little of the party's agenda due partially to infighting and partially to clashes with Democrats. White House: Republican (Donald Trump)

Republican (Donald Trump) House: Republicans held 236 seats, Democrats held 196 seats; there were three vacancies.

Republicans held 236 seats, Democrats held 196 seats; there were three vacancies. Senate: Republicans held 50 seats, Democrats held 47 seats; there were two independents, both of whom caucused with the Democrats. There was one vacancy.

114th Congress – 2015 and 2016 President Barack Obama. Mark Wilson / Getty Images News The 114th Congress was notable because Republicans won their largest majorities in the House and Senate in decades after voters used the midterm election in 2014 to express dissatisfaction with a Democratic president, Barack Obama. Democrats lost control of the Senate in the 2014 elections. Said Obama after the results became clear: "Obviously, Republicans had a good night. And they deserve credit for running good campaigns. Beyond that, I'll leave it to all of you and the professional pundits to pick through yesterday's results." White House: Democrat (Barack Obama)

Democrat (Barack Obama) House: Republicans held 246 seats, Democrats held 187 seats; there were two vacancies.

Republicans held 246 seats, Democrats held 187 seats; there were two vacancies. Senate: Republicans held 54 seats, Democrats held 44 seats; there were two independents, both of whom caucused with the Democrats.

113th Congress – 2013 and 2014 White House: Democrat (Barack Obama)

Democrat (Barack Obama) House: Republicans held 232 seats, Democrats held 200 seats; there were two vacancies

Republicans held 232 seats, Democrats held 200 seats; there were two vacancies Senate: Democrats held 53 seats, Republicans held 45 seats; there were two independents, both of whom caucused with the Democrats.

112th Congress – 2011 and 2012 ​Members of the 112th Congress were elected in a 2010 midterm election "shellacking" of the Democratic Party. Republicans won back the House two years after voters handed control of the White House and both chambers of Congress to the Democrats. After the 2010 midterms, Obama said: "People are frustrated. They're deeply frustrated with the pace of our economic recovery and the opportunities that they hope for their children and their grandchildren. They want jobs to come back faster." White House: Democrat (Barack Obama)

Democrat (Barack Obama) House: Republicans held 242 seats, Democrats held 193 seats

Republicans held 242 seats, Democrats held 193 seats Senate: Democrats held 51 seats, Republicans held 47 seats; there was one independent and one independent Democrat

111th Congress – 2009 and 2010 White House: Democrat (Barack Obama)

Democrat (Barack Obama) House: Democrats held 257 seats, Republicans held 178 seats

Democrats held 257 seats, Republicans held 178 seats Senate: Democrats held 57 seats, Republicans held 41 seats; there was one independent and one independent Democrat *Notes: U.S. Sen. Arlen Specter was reelected in 2004 as a Republican but switched parties to become a Democrat on April 30, 2009. U.S. Sen. Joseph Lieberman of Connecticut was reelected in 2006 as an independent candidate and became an Independent Democrat. U.S. Sen. Bernard Sanders of Vermont was elected in 2006 as an independent.

110th Congress – 2007 and 2008 US President George W. Bush (Photo courtesy of the White House/Newsmakers). Hulton Archive - Getty Images The 110th Congress is noteworthy because its members were elected by voters frustrated by the protracted war in Iraq and the continued loss of American soldiers. Democrats were swept into power in Congress, leaving Republican President George W. Bush and his party with diminished authority. University of California political scientist G. William Domhoff wrote: "The unexpected Democratic victory hobbled the right wing of the power elite and returned moderate conservatives to the central position they had held on policy issues for decades until the Republicans took control of the White House in 2000 and then both houses of Congress in 2002." Said Bush after the results became clear in 2006: "I'm obviously disappointed with the outcome of the election, and as the head of the Republican Party, I share a large part of the responsibility. I told my party's leaders that it is now our duty to put the elections behind us and work together with the Democrats and independents on the great issues facing this country." White House: Republican (George W. Bush)

Republican (George W. Bush) House: Democrats held 233 seats, Republicans held 202 seats

Democrats held 233 seats, Republicans held 202 seats Senate: Democrats held 49 seats, Republicans held 49 seats; there was one independent and one independent Democrat *Notes: U.S. Sen. Joseph Lieberman of Connecticut was reelected in 2006 as an independent candidate and became an Independent Democrat. U.S. Sen. Bernard Sanders of Vermont was elected in 2006 as an independent.

109th Congress – 2005 and 2006 White House: Republican (George W. Bush)

Republican (George W. Bush) House: Republicans held 232 seats, Democrats held 202 seats; there was one independent

Republicans held 232 seats, Democrats held 202 seats; there was one independent Senate: Republicans held 55 seats, Democrats held 44 seats; there was one independent

108th Congress – 2003 and 2004 White House: Republican (George W. Bush)

Republican (George W. Bush) House: Republicans held 229 seats, Democrats held 205 seats; there was one independent

Republicans held 229 seats, Democrats held 205 seats; there was one independent Senate: Republicans held 51 seats, Democrats held 48 seats; there was one independent

107th Congress – 2001 and 2002 White House: Republican (George W. Bush)

Republican (George W. Bush) House: Republicans held 221 seats, Democrats held 212 seats; there were two independents

Republicans held 221 seats, Democrats held 212 seats; there were two independents Senate: Republicans held 50 seats, Democrats held 48 seats; there were two independents *Notes: This session of the Senate began with the chamber evenly divided between Republicans and Democrats. But on June 6, 2001, U.S. Sen. James Jeffords of Vermont switched from Republican to independent and began caucusing with the Democrats, giving the Democrats a one-seat advantage. Later on Oct. 25, 2002, Democratic U.S. Sen. Paul D. Wellstone died and independent Dean Barkley was appointed to fill the vacancy. On Nov. 5, 2002, Republican U.S. Sen. James Talent of Missouri replaced Democratic U.S. Sen. Jean Carnahan, shifting the balance back to the Republicans.