MA and CT will also send black women to Congress as firsts for their states, while Arizona and Tennessee are getting their first female senators.
What is already the most diverse Congress ever will become even more so after Tuesday's elections, which broke barriers of race and gender.
Arizona will send a woman - either Democratic representative Kyrsten Sinema or Republican representative Martha McSally - to the Senate for the first time.
Tennessee gained the state's first woman in the Senate as Marsha Blackburn defeated former Gov. Phil Bredesen.
Some Democrats aren't blaming candidates like Beto O'Rourke (D-Texas) or Andrew Gillum (R-Fla.) for their election night losses - they're blaming white women.
This year, women tied the record for most governor's seats women have ever held - nine - a number that was previously reached in 2004 and 2007. And Jahana Hayes, the 2016 National Teacher of the Year, will be Connecticut's first black congresswoman.
At Donald Trump’s request, Jeff Sessions resigns as attorney general
Attorney General Jeff Sessions has resigned as the country's chief law enforcement officer at President Donald Trump's request. Some Democrats also considered Sessions too eager to do Trump's bidding and overly receptive to his grievances.
US Representative Elise Stefanik, a Republican representing upstate NY, was previously the youngest woman when she was elected in 2014 at age 30. The data showed that this year, white women split their vote between Democratic and Republican candidates for the House, but they preferred Republican candidates in 2010 and 2014.
"On a night when women are winning up and down the ballot this is a historic night for us because now Nevada joins to be the fifth state with two women Senators", Mrs Rosen said during her victory speech. "And make no mistake about it, we are the defenders of our democracy".
With most of the results now known, women in the United States have achieved a number of significant firsts and played a major role in shifting the figures in Congress.
In Colorado, Jared Polis became the first openly gay governor in American history. On Tuesday, James won her seat for New York State Attorney General. Such representation is particularly marked when President Trump has made flagrant anti-Muslim bigotry a key part of his political rhetoric, and some state-level Republicans are attempting to disenfranchise Native Americans en masse with Jim Crow tactics.
White women have been a target of attack by progressives all year, but many such complaints surfaced during the confirmation of Supreme Court Justice Brett Kavanaugh, who was falsely accused of sexual harassment in October. When she's sworn in, she'll be the youngest women to ever serve in Congress.
Nearly 80% of voters in a CNN exit poll said it's very or somewhat important that more women and racial minorities be elected to public office, with two-thirds of white voters agreeing. A previous tally from Rutgers' Center for American Woman and Politics had the current record total of women in the House at 84 and the overall total including the Senate at 107. Several were first-time candidates. Women's issues are the economy, their education, their gun control.
Prominent liberal voices offered scathing critiques of the demographic they blamed most for the lack of "blue wave" victory in the midterm election on Tuesday - white women.