Infrastructure week hits the presidential campaign trail

LAS VEGAS, Nev. — For at least a few hours, it was infrastructure week on the presidential campaign trail Sunday.

Predictably, former Vice President Joe Biden was entirely in his element as the kickoff speaker. "Amtrak Joe" got to talk about his interest in upgrading key rail infrastructure corridors.

"If you straighten out those three curves, you could get there in an hour-and-a-half," Biden said of the potential for reducing travel on time on Amtrak between New York and Washington, D.C.

Trains were among the recurring themes of the "Moving...