(CNN) Beto O'Rourke is set to counter President Donald Trump's visit to El Paso, Texas, on Monday by joining a one-mile march past Trump's rally and giving a speech across the street at about the same time the President plans to take the stage.

As the former congressman from Texas weighs a bid for the 2020 Democratic presidential nomination -- he told Oprah Winfrey this week that he'll decide by the end of the month -- he is participating in a protest against Trump's push for a wall along the southern border.

The march, organized by Women's March El Paso, is being billed as a "March for Truth: Stop the Wall, Stop the Lies."

Lyda Ness-Garcia, one of the organizers of the march, said the group met with O'Rourke and he agreed to speak at the rally, march with protesters -- and possibly play with some of the bands.

Read More