ASSOCIATED PRESS The U.S. women's national soccer team. Just. Keeps. Winning. They're not winning on fair pay, though. They keep getting screwed.

WASHINGTON ― As the U.S. women’s national soccer team heads to the FIFA Women’s World Cup final on Sunday, with a shot at winning the entire tournament for the fourth time, dozens of members of Congress are demanding answers from the U.S. Soccer Federation on why it is still paying female players so much less than male players. “The USWNT is the most successful team in women’s soccer history, winning World Cup titles in 1991, 1999 and 2015; winning four Olympic gold medals; and holding the No. 1 ranking entering the 2019 FIFA Women’s World Cup,” reads a Wednesday letter to U.S. Soccer President Carlos Cordeiro. “However, despite doing the same job as the U.S. Men’s National Team, USWNT players are receiving inferior wages, working conditions, and investment from U.S. Soccer.” More than 50 lawmakers signed the letter, led by Rep. Jackie Speier (D-Calif.) and other leaders of the House Democratic Women’s Caucus. They have lots of questions for Cordeiro, including how he plans to address institutionalized gender discrimination within U.S. Soccer and a request for details on what the organization is doing to market and promote the U.S. women’s team. Here’s a copy of the letter:

Female soccer players’ base salary is roughly $30,000 less than their male counterparts at U.S. Soccer. They also earn a much smaller bonus in the World Cup ($15,000) than male players do ($55,000). And here’s a stark comparison: U.S. Soccer awarded the men’s team a $5.4 million bonus after it lost in the round of 16 at the 2014 World Cup. It awarded the women’s team $1.7 million when it won the entire 2015 tournament. The pay disparities remain as U.S. women’s soccer games have been generating more total revenue than U.S. men’s games for the last three years. They’re getting more eyeballs too: The 2015 Women’s World Cup final had more views than any soccer match in U.S. history, men’s or women’s. Earlier this week, Nike announced that the U.S. women’s team’s jersey is now the highest-selling soccer jersey ever sold on its website in one season. “What more will it take for our players to receive the recognition and compensation they deserve?” asked Rep. Kathy Castor (D-Fla.), who wrote her own letter to Cordeiro this week in addition to signing Speier’s letter. Castor is a co-chair of the Congressional Soccer Caucus and has previously urged U.S. Soccer to press FIFA for more investments in girls’ and women’s soccer globally.

ASSOCIATED PRESS Julie Ertz, a midfielder on the U.S. women's national team, heads the ball in the match against France. The U.S. won that game 2-1.