Hillary Clinton's campaign is confronting an emerging risk to her presidential ambitions — if Donald Trump continues to trail her in opinion polls many Democrats may simply stay at home on Election Day.
Without enough popular support, Clinton would enter the White House lacking the political capital she would need to drive through her agenda. In the worst-case scenario it could cost her the presidency if Republicans turn out in big numbers on Nov. 8.
Clinton, the Democratic nominee, has spent much of her campaign sounding the alarm over the prospect of a President Trump. She has struggled to lay out a compelling vision for her presidency and has failed to excite key constituencies, including millennials, minority voters and liberal Democrats.