Hillary Clinton's lead over Donald Trump has collapsed nationally just before the highly anticipated first presidential debate Monday, according to a new poll.
The Bloomberg Politics poll says Trump and Clinton are each supported by 46 percent of likely voters in a two-way race. In August, Clinton had a 6-point edge over Trump, and in June, Clinton had a comfortable 12-point lead.
In a four-person race, the Trump now leads Clinton 43-41, Libertarian nominee Gary Johnson gets 8 percent and Green Party nominee Jill Stein gets 4 percent.
Pollster Ann Selzer, who oversaw the survey, speculated that Trump's rise could be a sign that Clinton's support among women and young voters is wavering.