Agriculture Secretary Mike Johanns, left, appears with President Bush at the White House on Thursday.
WASHINGTON (CNN) - President Bush announced Thursday that Agriculture Secretary Mike Johanns will resign his post. Johanns is expected to seek an open seat in the U.S. Senate from his home state of Nebraska.
"Mike came by the White House here a couple of days ago and he asked for my advice," Bush said. "During the discussion, he told me that he was interested in continuing to serve America, just in a different role."
Johanns made no announcement about what that role might be. (Related: Agriculture Secretary to step down to make Senate run)