Michael Gove has said that it was his decision to move aside from the role of Education Secretary in the latest ministerial reshuffle.
Asked on Sky News whether David Cameron had given him a choice about moving to become Chief Whip, Mr Gove said: "Yes, he did."
He said part of his new responsibilities would be making sure voters know there is a "straightforward choice" between Ed Miliband and Mr Cameron to be the next Prime Minister.
"Under David Cameron, our long-term economic plan will be secured. Under Ed Miliband many of the gains that we have made will be put at risk," Mr Gove claimed.
More top news
Two doctors have been charged after a 30-year-old woman died while having an emergency caesarean.
Janet Faal was left badly injured after leaving the house for only the third time in ten years.
More than 100 small business owners say they support Ukip's policies to help small traders in a letter published in the Daily Express.