On Friday, the President tweeted again that crime in Chicago has "reached such epidemic proportions that I am sending in Federal help".
The government is sending gun investigators to Chicago and plans to prosecute firearms cases aggressively, Attorney General Jeff Sessions told Fox News when asked about Trump's statement about the plan in an early-morning Twitter post.
On Thursday, authorities confirmed that around 20 additional Alcohol, Tobacco, Firearms and Explosives agents had been dispatched to the city.
"Six months ago we made it clear that we would welcome additional federal support, and six months later we appreciate the 20 new ATF agents that are now arriving", Collins said in an email.
Trump tweeted shortly after taking office in January that if city of Chicago did not fix the "carnage", he would send in federal aid.
DNAinfo has tracked 1,373 shooting in Chicago as of Friday, and 332 murders.
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They also indicated that she called lawyers specializing in civil litigation before reporting the alleged assault to police. After briefly losing consciousness, she came round as Cosby was touching her private parts, she testified.
Officials with the mayor's office said that the additional ATF agents come from a request the city made to the Obama administration last summer.
US President Donald Trump has chose to send federal troops to Chicago to help fight street violence and drug trafficking.
"We'll have an impact in reducing shootings in Chicago", he said, while saying police there are "demoralized" and city policies are not working.
"No child in America should have to walk the streets of their neighborhood in fear of violent criminals, and yet in Chicago, thousands of children do every day".
Sessions last week pledged federal assistance to 12 cities to help them develop individualized, long-term strategies to fight violence.
The team will include an additional 20 ATF agents, who arrived in early June, according to a city official, as well as Chicago police officers, IL state troopers, intelligence analysts and state and federal prosecutors. But Chicago was not among them.
"The Trump Administration will not let the bloodshed go on; we can not accept these levels of violence", Sessions said in a statement on Friday afternoon. Under that initiative, federal agents teamed up with their local counterparts to share resources and intelligence.