Chants of "equal pay" reverberated from the bleachers of the Stade de Lyon in France on Sunday following the U.S. women's national team's 2-0 victory over Netherlands to win the FIFA Women's World Cup. 

Videos posted on social media showed different sections of fans repeatedly and loudly chanting "equal pay," a reference to the disparity between the income of the U.S. women's and men's national teams. 

The pay gap between men and women gained increased scrutiny as the U.S. women marched to their second consecutive World Cup title and record-breaking fourth championship overall. 

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The women's team is engaged in a gender discrimination lawsuit against the United States Soccer Federation because the organization pays male players far more than female players. 

For example, each player on the U.S. women's national team could receive about $260,000 in maximum earnings for winning the Women's World Cup, according to documents obtained by The Guardian, while each player on the U.S. men's national team could have earned nearly $1 million if the club had won the World Cup. 

Democratic lawmakers, including multiple 2020 presidential candidates, have spoken out about the issue in recent months. Sen. Kamala HarrisKamala HarrisDC goes to the dogs — Major and Champ, that is Florida nurse arrested, accused of threatening to kill Harris Oddsmakers say Harris, not Biden, most likely to win 2024 nomination, election MORE (D-Calif.), Sen. Elizabeth WarrenElizabeth WarrenWorld passes 3 million coronavirus deaths Poll: 56 percent say wealth tax is part of solution to inequality Democratic senators call on Biden to support waiving vaccine patents MORE (D-Mass.) and Sen. Kirsten GillibrandKirsten GillibrandIntelligence leaders warn of threats from China, domestic terrorism Jon Stewart accuses VA of being 'an obstacle' to burn pits medical care Family policy that could appeal to the right and the left MORE (D-N.Y.) in March signed on to a letter spearheaded by Sen. Dianne Feinstein (D-Calif.) urging the United States Soccer Federation president to "ensure that the U.S. Women's National Team is fairly compensated."

Rep. Alexandria Ocasio-CortezAlexandria Ocasio-CortezBiden on refugee cap: 'We couldn't do two things at once' A proposal to tackle congressional inside trading: Invest in the US Biden angers Democrats by keeping Trump-era refugee cap MORE (D-N.Y.) chimed in on the controversy on Sunday, tweeting, "At this point we shouldn’t even be asking for #EqualPay for the #USWMNT - we should demand they be paid at least twice as much."