campaign trail

:  a connected series of military operations forming a distinct phase of a war

:  a connected series of operations designed to bring about a particular result

:  to go on, engage in, or conduct a campaign

:  to enter (something, such as a horse or boat) in competition

:  to hang down so as to drag along or sweep the ground

:  to extend over a surface in a loose or straggling manner

:  to grow to such length as to droop over toward the ground

:  a track made by passage especially through a wilderness

:  a marked or established path or route especially through a forest or mountainous region

:  a trace or mark left by something that has passed or been drawn along :  scent, track