Trump's joint address guests include relatives of people killed by undocumented immigrants

The White House released a list of six guests for the joint address.

— -- President Donald Trump and first lady Melania Trump will invite three relatives of victims of deadly crimes committed by undocumented immigrants to the president's joint address before Congress on Tuesday.

The White House guest list includes Jessica Davis and Susan Oliver, widows of California police officers killed in the line of duty by a person living in the country illegally, and Jamiel Shaw Sr., whose son was shot by an undocumented immigrant.

The guests highlight the president's focus on crimes allegedly committed by immigrants in his push for tighter immigration controls.

Kicking off his presidential campaign back in 2015, Trump created a controversy when he said immigrants from Mexico was were "bringing crime" and "they’re rapists."

Shortly after taking office, Trump issued an executive order directing the Department of Homeland Security to publish weekly lists of “criminal actions committed by aliens and any jurisdiction that ignored or otherwise failed to honor any detainers with respect to such aliens.”

But a number of scientific studies conducted over the past several years contradict the idea that immigrants are responsible for a disproportionate share of crime.

ABC News' Jim Avila and Alisa Wiersema contributed to this report.