[John Catsimatidis]Photo by Andrew H. Walker/Getty Images * JOHN CATSIMATIDIS, A GREEK IMMIGRANT AND THE FOUNDER OF NEW YORK CITY GROCERY CHAIN GRISTEDES, IS A VOCAL SUPPORTER OF PRESIDENT TRUMP. * ON THE TOPIC OF TRUMP'S REELECTION CAMPAIGN, CATSIMATIDIS TOLD BLOOMBERG'S HAILEY WALLER, "I DON'T WANT A JOB. I'M HERE TO HELP." * CATSIMATIDIS HAS A NET WORTH OF $3.1 BILLION, FORBES ESTIMATES. * VISIT BUSINESS INSIDER'S HOMEPAGE FOR MORE STORIES. John Catsimatidis built a fortune operating a New York City-area grocery chain after his parents brought him to the United States from Greece as a baby. That hasn't stopped him from becoming an immigration hard-liner. "I want immigration," Catsimatidis said in an interview with Bloomberg's Hailey Waller. "But let's take people who are going to help our country get better, versus people who want to hurt us. You can't solve the world's problems. We don't want the drug addicts, we don't want the people who are renting children to cross the border."SEE THE REST OF THE STORY AT BUSINESS INSIDERNOW WATCH: Nxivm leader Keith Raniere has been convicted. Here's what happened inside his sex-slave ring that recruited actresses and two billionaire heiresses. SEE ALSO: * Meet Laura Arnold, the billionaire philanthropist taking on the parole system with Jay-Z and Meek Mill * 10 of the most bizarre details people have reported finding in Jeffrey Epstein's NYC mansion, from a painting of Bill Clinton in a dress to prosthetic breasts mounted on a bathroom wall * Alibaba billionaire Joseph Tsai is buying out the Brooklyn Nets and the Barclay Center in a $2.35 billion deal, and it's the highest price ever paid for a sports franchise SEE ALSO: MEET THE SELF-PROCLAIMED 'BILLIONAIRE HEIRESS' WHO RUNS THE MANHATTAN REPUBLICAN PARTY, WAS FORMERLY MARRIED TO RICHARD NIXON'S GRANDSON, AND WHOSE SIGNATURE OUTFIT IS A BIKINI DON'T MISS: MEET LAURA ARNOLD, THE BILLIONAIRE PHILANTHROPIST TAKING ON THE PAROLE SYSTEM WITH JAY-Z AND MEEK MILL