Trump made the claim last week in his State of the Union Address when he said El Paso "used to have extremely high rates of violent crime - one of the highest in the country, and considered one of our nation's most unsafe cities".
The rally comes as O'Rourke nears a decision on whether to join the Democratic race to challenge Trump in 2020 following a closer-than-expected loss to U.S. Sen.
Dozens of supporters of President Donald Trump's border security efforts formed a human wall Saturday across a small part of the southern border where there is no fencing.
Donning "Make America great again" hats, chanting "build a wall" and waving American flags, the demonstrators linked arms near an open section of the border at Sunland Park, northwest of El Paso.
In spite of the President's appearance, failed Senate candidate Beto O'Rourke plans on spoiling the fun by holding a protest march outside the venue of the MAGA rally. The event will be held a mile away from the El Paso County Coliseum to counter the president's hardline stance on immigration.
Earlier Monday, O'Rourke will join his successor in Congress, Rep. Veronica Escobar, for a conference call to "denounce Trump's campaign rally in El Paso and his fixation on a racist and useless border wall", organizers said.
During his State of the Union address Trump highlighted El Paso as a positive example of what border barriers could achieve.
A dispute in El Paso is growing as President Donald Trump is scheduled to visit the city Monday to hold a rally supporting a border wall. In his State of the Union, President Donald Trump said a "powerful barrier" had cut crime rates and turned El Paso, Texas, from one of the nation's most unsafe cities to one of its safest.
The statements have been widely rejected by city officials. It is not the sole deterrent. "These distortions about our vibrant community are harmful to our reputation and degrade our spirit", she wrote.