Rift widens between Michelle Obama and school officials on lunch reforms

White House Senior Policy Advisor for Nutrition Policy Sam Kass and US First Lady Michelle Obama plant the 6th annual White House Kitchen Garden at the White House in Washington, DC, April 2, 2014.

This week, the School Nutrition Association is holding its annual convention in Boston. But one key player in the good nutrition movement will not be there: Sam Kass, Obama's food policy czar.

This week, the School Nutrition Association is holding its annual convention in Boston.

Thousands of school nutrition professionals from across the country will be there, '80s rockers "Huey Lewis and the News" will perform, but one key player in the good nutrition movement will not be there, even though he specifically asked to speak at the conference — he's celebrity chef Sam Kass, first lady Michelle Obama's food policy czar.

Politico's food and agriculture reporter Helena Bottemiller Evich joins Take Two for more on why he was snubbed and the heated battle over school lunches.