Secretary of Agriculture Mike Johanns, in a letter to President Bush dated Sept. 19, tendered his resignation from his cabinet position “to pursue a new opportunity to serve this great nation.”

More: continued here

More from Business

• Tribune receives $344-million tax refund
• Walgreen same-store sales up 4.7% in September
• Start-up drug distributor gets investment
• Blue Cross, Rush settle dispute
• Sears revives Wish Book
• New Chicago-based hedge fund opens
• Pilot error contributed to Midway accident: NTSB
• Index close lower, but gainers beat decliners
• Big potential gain for Navteq's CEO
• Ford sales slump 21%, others mixed