Walker sends letter in support of DeVos for education head

MADISON, Wis. (AP) _ Wisconsin Gov. Scott Walker has sent a letter of support for Betsy DeVos as U.S. education secretary.    Walker's letter sent Monday to the leaders of the Senate committee that held her confirmation hearing Tuesday. DeVos is a billionaire and leading advocate of the school choice movement.    Liberal think tank the Center for American Progress says Walker has received $342,000 from DeVos and her family since 2010.    Walker says in the letter that he strongly supports her confirmation and that she believes in ``promoting competition by giving parents and students the opportunity to choose the schools of their choice.''    DeVos used to head the American Federation for Children, a group that backs school choice efforts and has spent millions since 2010 to help elect Walker and Republicans.