John Catsimatidis

In spite of predictions that his insurgent campaign would fizzle out, Trump's support among Republicans just keeps growing.

Our second round of interviews with candidates for New York City mayor continues. John Catsimatidis, CEO of Red Apple Group and Gristedes Foods, talks about his run for the Republican nomination.

John Catsimatidis, CEO of Gristedes Foods, talks about his now-official run for the Republican nomination for NYC Mayor.

Linda Gibbs, New York City's deputy mayor of health and human services, and José Serrano, New York State Senator (D, 28th district), talk about why so many supermarkets seem to be closing. Then, John Catsimatidis, the CEO of the Red Apple Group and Gristedes Foods, weighs in.

John Catsimatidis owns and runs Gristedes and Red Apple supermarkets. He's made major donations to the campaigns of both Clintons. Now, though, he's announced that he intends to run for mayor as a Republican and self-fund his campaign. He tells us more about why he wants to run the city.