White supremacy must be identified as terrorism under federal law, Rep. Alexandria Ocasio-Cortez said at a vigil Monday for victims of the El Paso and Dayton shootings.

“There are so many different issues that are weaving themselves into a braid of violence into our country. One of them is white supremacist terrorism,” Ocasio-Cortez (D-Bronx/Queens) told about 500 people at the vigil held at Grand Army Plaza in Brooklyn.

The freshman congresswoman has argued that while terrorism by foreign groups like Al Qaeda is defined in federal law, terrorism by domestic groups is not.

“White supremacy is an international terrorist problem," Ocasio-Cortez said at the vigil, referring to the New Zealand mosque shootings that took 51 lives in March.

31 PHOTOS El Paso shooting leaves 20 dead, more than two dozen injured See Gallery El Paso shooting leaves 20 dead, more than two dozen injured Law enforcement from different agencies work the scene of a shooting at a shopping mall in El Paso, Texas, on Saturday, Aug. 3, 2019. Multiple people were killed and one person was in custody after a shooter went on a rampage at a shopping mall, police in the Texas border town of El Paso said. (AP Photo/Rudy Gutierrez) Law enforcement work the scene of a shooting at a shopping mall in El Paso, Texas, on Saturday, Aug. 3, 2019. Multiple people were killed and one person was in custody after a shooter went on a rampage at a shopping mall, police in the Texas border town of El Paso said. (AP Photo/Rudy Gutierrez) Police tape strung across an intersection behind the scene of a shooting at a shopping mall in El Paso, Texas, on Saturday, Aug. 3, 2019. Multiple people were killed and one person was in custody after a shooter went on a rampage at a shopping mall, police in the Texas border town of El Paso said. (AP Photo/Rudy Gutierrez) An El Paso police officer talks to a store employee following a shooting at a shopping mall in El Paso, Texas, on Saturday, Aug. 3, 2019. Multiple people were killed and one person was in custody after a shooter went on a rampage at a shopping mall, police in the Texas border town of El Paso said. (AP Photo/Rudy Gutierrez) Law enforcement officers make their way along a walkway to the scene of a shooting at a shopping mall in El Paso, Texas, on Saturday, Aug. 3, 2019. Several people were killed in the shooting Saturday in a busy shopping area in the Texas border town. (AP Photo/Rudy Gutierrez) People walk out of an elementary school after family members were asked to reunite following a shooting at a shopping mall in El Paso, Texas, on Saturday, Aug. 3, 2019. Multiple people were killed and one person was in custody after a shooter went on a rampage at a shopping mall, police in the Texas border town of El Paso said. (AP Photo/Rudy Gutierrez) An El Paso police officer checks vehicles along a roadway near the scene of a shooting at a shopping mall in El Paso, Texas, on Saturday, Aug. 3, 2019. Several people were killed in the shooting Saturday in a busy shopping area in the Texas border town. (AP Photo/Rudy Gutierrez) Ambulances stage in the parking near the scene of a shooting at a shopping mall in El Paso, Texas, on Saturday, Aug. 3, 2019. Several people were killed in the shooting Saturday in a busy shopping area in the Texas border town. (AP Photo/Rudy Gutierrez) U.S. Customs and Border Protection officers stage along a street near the scene of a shooting at a shopping mall in El Paso, Texas, on Saturday, Aug. 3, 2019. Several people were killed in the shooting Saturday in a busy shopping area in the Texas border town. (AP Photo/Rudy Gutierrez) U.S. Customs and Border Protection officers gather near the scene of a shooting at a shopping mall in El Paso, Texas, on Saturday, Aug. 3, 2019. Multiple people were killed and one person was in custody after a shooter went on a rampage at a shopping mall, police in the Texas border town of El Paso said. (AP Photo/Rudy Gutierrez) People walk into an elementary school to look for loved ones near the site of a shooting at a shopping mall in El Paso, Texas, on Saturday, Aug. 3, 2019. Several people were killed in the shooting Saturday in a busy shopping area in the Texas border town. (AP Photo/Rudy Gutierrez) A law enforcement officer walks near the scene of a shooting at a shopping mall in El Paso, Texas, on Saturday, Aug. 3, 2019. Multiple people were killed and one person was in custody after a shooter went on a rampage at a shopping mall, police in the Texas border town of El Paso said. (AP Photo/Rudy Gutierrez) Law enforcement officers arrive near the scene of a shooting at a shopping mall in El Paso, Texas, on Saturday, Aug. 3, 2019. Several people were killed in the shooting Saturday in a busy shopping area in the Texas border town. (AP Photo/Rudy Gutierrez) A police officer stands outside a home in Allen, Texas, believed to be associated with a mass shooting at a busy shopping area in the border town of El Paso, Saturday, Aug. 3, 2019. (AP Photo/Jake Bleiberg) Agentes de varias corporaciones se presentan en el lugar donde se registró un tiroteo en un centro comercial de El Paso, Texas, el sábado 3 de agosto de 2019. (AP Foto/Rudy Gutierrez) Agentes de varias corporaciones se presentan en el lugar donde se registró un tiroteo en un centro comercial de El Paso, Texas, el sábado 3 de agosto de 2019. (AP Foto/Rudy Gutierrez) Edie Hallberg, left, speaks with police officers outside the Walmart store as she's looking for her missing mother Angie Englisbee, 87, who was in the store during the mass shooting in El Paso, Texas, Saturday, Aug. 3, 2019. Multiple people were killed and one person was in custody after a shooter went on a rampage at a shopping mall, police in the Texas border town of El Paso said. (AP Photo/Andres Leighton) Edie Hallberg cries while speaking to the police outside the Walmart store as she's looking for her missing mother Angie Englisbee, 87, who was in the store during the mass shooting in El Paso, Texas, Saturday, Aug. 3, 2019. Multiple people were killed and one person was in custody after a shooter went on a rampage at a shopping mall, police in the Texas border town of El Paso said. (AP Photo/Andres Leighton) Texas state police cars block the access to the Walmart store in the aftermath of a mass shooting in El Paso, Texas, Saturday, Aug. 3, 2019. Multiple people were killed and one person was in custody after a shooter went on a rampage at a shopping mall, police in the Texas border town of El Paso said. (AP Photo/Andres Leighton) An El Paso Police officer stands guard outside a Walmart store in the aftermath of a deadly shooting in El Paso, Texas, Saturday, Aug. 3, 2019. (AP Photo/Andres Leighton) From left, Melody Stout, Hannah Payan, Aaliyah Alba, Sherie Gramlich and Laura Barrios comfort each other during a vigil for victims of the shooting Saturday, Aug. 3, 2019, in El Paso, Texas. A young gunman opened fire in an El Paso, Texas, shopping area during the busy back-to-school season, leaving multiple people dead and more than two dozen injured. (AP Photo/John Locher) People embrace during a vigil for victims of the shooting Saturday, Aug. 3, 2019, in El Paso, Texas. A young gunman opened fire in an El Paso, Texas, shopping area during the busy back-to-school season, leaving multiple people dead and more than two dozen injured. (AP Photo/John Locher) People attend a vigil for victims of the shooting Saturday, Aug. 3, 2019, in El Paso, Texas. A young gunman opened fire in an El Paso, Texas, shopping area during the busy back-to-school season, leaving multiple people dead and more than two dozen injured. (AP Photo/John Locher) Melody Stout and Hannah Payan comfort each other during a vigil for victims of the shooting that occurred earlier in the day at a shopping center, Saturday, Aug. 3, 2019, in El Paso, Texas. (AP Photo/John Locher) People gather in Juarez, Mexico, Saturday, Aug. 3, 2019, in a vigil for the 3 Mexican nationals who were killed in an El Paso shopping-complex shooting. Twenty people were killed and more than two dozen injured in a shooting Saturday in a busy shopping area in the Texas border town of El Paso, the state’s governor said. (AP Photo/Christian Chavez) People gather in Juarez, Mexico, Saturday, Aug. 3, 2019, in a vigil for the 3 Mexican nationals who were killed in an El Paso shopping-complex shooting. Twenty people were killed and more than two dozen injured in a shooting Saturday in a busy shopping area in the Texas border town of El Paso, the state’s governor said. (AP Photo/Christian Chavez) From left, Samuel Lerma, Arzetta Hodges and Desiree Quintanar attend a vigil for victims of the deadly shooting that occurred earlier in the day at a shopping center Saturday, Aug. 3, 2019, in El Paso, Texas. (AP Photo/John Locher) People gather in Juarez, Mexico, Saturday, Aug. 3, 2019, in a vigil for the 3 Mexican nationals who were killed in an El Paso shopping-complex shooting. Twenty people were killed and more than two dozen injured in a shooting Saturday in a busy shopping area in the Texas border town of El Paso, the state’s governor said. (AP Photo/Christian Chavez) People gather in Juarez, Mexico, Saturday, Aug. 3, 2019, in a vigil for the 3 Mexican nationals who were killed in an El Paso shopping-complex shooting. Twenty people were killed and more than two dozen injured in a shooting Saturday in a busy shopping area in the Texas border town of El Paso, the state’s governor said. (AP Photo/Christian Chavez) A police officer stands in the doorway to a Walmart where a gunman opened fire in a shopping complex Saturday, Aug. 3, 2019, in El Paso, Texas. (AP Photo/John Locher) A woman sits next to a sign with a message that reads: ¨No More Guns! Make Love¨, in Juarez, Mexico, Saturday, Aug. 3, 2019, where people are gathering for a vigil for the 3 Mexican nationals who were killed in an El Paso shopping-complex shooting. Twenty people were killed and more than two dozen injured in a shooting Saturday in a busy shopping area in the Texas border town of El Paso, the state’s governor said. (AP Photo/Christian Chavez) Up Next See Gallery Discover More Like This HIDE CAPTION SHOW CAPTION of SEE ALL BACK TO SLIDE

She also told the group that anti-immigration rhetoric by President Trump and others “is directly responsible for what happened in El Paso.”

The El Paso shooter complained in an online manifesto that the U.S. is being overrun by Hispanic immigrants.

“I’m tired of the questioning if the president is racist. He is,” Ocasio-Cortez said.

Among the other speakers at the vigil was Rep. Carolyn Maloney (D-Manhattan/Queens).

"We have more guns in America than anywhere on earth. And if guns made us safer, than we would be the safest nation earth. And are we?” Maloney asked. “No!” the crowd answered.

Maloney has long supported a national ban on assault weapons.

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