Mexico’s Supreme Court refused last week for the second time in six weeks to make a ruling that could allow substantial new access to the Mexican market worth hundreds of millions of dollars annually for U.S. potatoes, fueling Mexican farmers' determination to continue their fight against the trade.

Japan and the U.S. appear to be moving quickly on a free-trade agreement, but U.S. ag groups from across the country are pouring on the pressure for negotiators to move in a hurry.

Next week is going to start off with a thud and not an April Fools' Day joke when Japan further lowers tariffs on wheat and barley from Australia, Canada and European Union countries.