Transcript for Trump's reaction to the mass shooting
The president of course monitoring developments from his club in knowledge knowledge today. Tweeting after the word of the El Paso shootings came in, fledging federal support. A short time ago, saying hate has no place in our country. But tonight, president trump's own words are coming under increasing scrutiny. Here's ABC's senior white house correspondent Cecilia Vega. Reporter: Heading home from his New Jersey golf club, president trump today, vowing action but offering no specifics. Hate has no place in our country and we are going to take care of it. Reporter: His chief of staff using the alleged El Paso shooter's own words, saying the attack was not about president trump. I hate to draw attention to the manifesto, but if you actually go and look at it, what the guy says is that he's felt this way a long time before Donald Trump got elected president. No politician is to blame for that. Reporter: But many Democrats running against him say the president is directly to blame. Former Texas congressman Beto O'rourke, who calls El Paso home, says there's no question the president is fueling racism. Calling those in Africa Nations and saying he would like to have more immigration from nordic countries, the whitest place on planet Earth today. He is an open avowed racist and is encouraging more racism in this country. Reporter: Senator Bernie Sanders calling out president trump point blank, tweeting -- "Mr. President stop your racist, hateful and anti immigrant rhetoric. Your language creates a climate which emboldens violent extremists." Just three months ago, this scene at a rally in Panama City beach, Florida. President trump at first laughing when a supporter in the crowd suggested shooting immigrants. But how do you stop these people? Shoot them. You can't. That's only in the panhandle you can get away with that statement. Reporter: And this spring, in the oval office, the president said he does not view white nationalism as a growing threat. Do you see, today, white nationalism as a rising threat around the world? I don't really. I think it's a small group of people that have very, very serious problems. Reporter: And now the president says he plans to deliver remarks tomorrow morning right here in the white house. It's unclear exactly what he plans to announce at this time. Tonight, the flags here are flying at half-staff. All right, Cecilia Vega live from the white house. Thank you. There is more ahead on this
This transcript has been automatically generated and may not be 100% accurate.