Sen. Rand Paul is looking to college students to help jump-start his flagging 2016 presidential campaign, releasing a new video urging his young supporters to organize their campuses over the next month.

The goal is to establish Paul campaign chapters on 300 campuses in 30 days, Mr. Paul says in the video.

The video, released Thursday as students are preparing to return to school for the fall , comes at a time when the Kentucky senator’s poll standing has sagged and he has tried to seize more attention by becoming one of the party’s most vocal critics of reality television personality Donald Trump.