Barack Obama has evoked Abraham Lincoln ever since launching his campaign at the Old State Capitol in Springfield, Ill. Now he plans to arrive in Washington the same way that Lincoln did in 1861, with a train trip that will include stops, speeches and crowds along the way. On Jan. 17, Obama and his family will start the day with an appearance in Philadelphia, where they will board a chartered Amtrak train. The train will stop in Wilmington, Del., where the Obamas will be joined by Vice President-elect Joseph R. Biden Jr. Then comes a stop in Baltimore before the...