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 HarrisSenate GOP's campaign arm rakes in M as Georgia runoffs heat up Biden, Harris to sit with CNN's Tapper in first post-election joint interview The Hill's 12:30 Report — Presented by Capital One — Giuliani denies discussing preemptive pardon with Trump MORE (D-Calif.), Sen. Elizabeth WarrenElizabeth WarrenOn The Money: McConnell offering new coronavirus relief bill | Biden introduces economic team, vows swift action on relief | Rare Mnuchin-Powell spat takes center stage at COVID-19 hearing Biden introduces economic team, vows swift action on struggling economy Louisville mayor declares racism a public health crisis MORE (D-Mass.) and Sen. Kirsten GillibrandKirsten GillibrandOvernight Defense: Defense bill among Congress's year-end scramble | Iranian scientist's assassination adds hurdles to Biden's plan on nuclear deal | Navy scrapping USS Bonhomme Richard after fire Democratic senators urge Facebook to take action on anti-Muslim bigotry Social media responds to Harris making history: 'I feel like our ancestors are rejoicing' 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-CortezObama: You lose people with 'snappy' slogans like 'defund the police' The left's turn against freedom: Curb speech, ban books, make an 'enemies list' Manchin: Ocasio-Cortez 'more active on Twitter than anything else' 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."