Trump also met victims from last weekend's deadly shootings on Wednesday (August 8), as chanting protesters accused him of inflaming tensions with anti-immigrant and racially charged rhetoric.
As Trump arrived in the city, activists held a rally attended by presidential candidate Beto O'Rourke.
Activists at the rally decried Trump and held posters supporting immigration and gun control.
Trump's visit there comes hours after he visited Dayton, Ohio where at least nine people and the suspect died in a rampage early on Sunday, one of two mass shootings 13 hours apart that shocked the country and reignited the debate over gun safety.
Earlier in the day, Trump and first lady Melania Trump visited survivors in their hospital rooms at the University Medical Center in El Paso and Miami Valley Hospital in Dayton, Ohio after massacres 13 hours apart this weekend left over 20 people dead.
The president and first lady avoided the press on both hospital visits and stayed out of public view.