An unexpected literary find kindled a passion for the series on America's great waterways.
His large margins of victory in Tuesday's contests put Clinton on the ropes.
US-Cuba relations are unlikely to thaw anytime soon, but change may be only a matter of time.
The State Department said Tuesday that Castro's departure won't lead to a change in policy or the lifting of the embargo.
Clinton needs a Dairy State win to prevent him from winning nine primaries in a row.
His victories Tuesday make eight in a row and show he's eroding Clinton's core constituencies.
Clinton's recovery plan counts on the big-state contests on March 4.
The price may hit $3.50 a gallon this spring because of problems obtaining alkylates.
The Illinois senator narrowed the delegate gap with Sen. Hillary Clinton.