After Tuesday's primary results, which ended the race for the Republican nomination and prolonged that for the Democratic nod, the three remaining campaigns must re-examine their strategies....

...Immediately following his New Hampshire trek, McCain will head overseas on a 10-day congressional delegation trip to Europe and the Middle East that will coincide with the Senate's spring recess.

After returning on Easter Sunday -- March 23 -- McCain will deliver a major speech that week detailing his observations from the trip.