CEO of DeSantis super PAC resigns

Chris Jankowski, the CEO of the main super PAC backing Florida Gov. Ron DeSantis' presidential run, has resigned. Jankowski confirmed to CBS News that he sent a resignation to the Never Back Down PAC's board and that it was effective immediately. 

Jankowski's resignation was first reported by The New York Times. 

His resignation comes amid reports of turmoil between the PAC and DeSantis' campaign brass, with the latest flare-up coming after attack ads from the PAC on former United Nations ambassador Nikki Haley backfired against DeSantis in polling, according to NBC News.