Hillary Clinton has a four point edge in a new poll when matched solely against Donald Trump, but the billionaire bests the Democrat once third party candidates are added in.

Clinton is up two points this week in the NBC News/SurveyMonkey Weekly Election Tracking Poll now standing at 48 percent to 44 percent against Trump.

But when pollsters started surveying voters about a third-party option, it was Clinton's numbers who were hurt worse.

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Donald Trump (left) makes gains in the polls when a third-party option is added to the mix , while Hillary Clinton (right) gained two points this week in a survey in which she was running just against Trump

Hillary Clinton saw her prospects rise this week, gaining two points when she was pitted just against Donald Trump, likely getting a bump because of her well-received foreign policy speech in San Diego

When a third party is added to the equation, Hillary Clinton's support gets sucked away and Donald Trump becomes the winner of the White House, early polling shows

What they did is survey the electorate two ways on third-parties.

First, pollsters asked survey respondents, who were talked to between June 2 and June 5, to determine who they'd vote for between Clinton, Trump, Libertarian presidential candidate Gary Johnson and Green Party candidate Jill Stein.

Here, Trump polled at 40 percent, Clinton polled at 39 percent and then Johnson received 9 percent and Stein received 4 percent, with another 8 percent not answering the question.

The other way the question was polled was that respondents were asked to chose Clinton, Trump or another candidate, with those being surveyed given the opportunity to fill in the name of that voting option.

In this scenario, Trump received 39 percent of the vote to Clinton's 36 percent, with responses for 'other' totaling 22 percent.

'The clear result from the two different questions that offer third-party alternatives is that Clinton performs worse than Trump,' an explanation of the polling stated.

The results both make sense and don't.

Donald Trump does better when Americans have another option than just Hillary Clinton, with outsider candidates seeming very appealing to the American public this election season

Republicans and libertarians are political cousins so typically having these candidates on the ticket together would split the right-wing vote.

However, it's been a big year for outsiders.

The 2016 election thus far saw the rise of Donald Trump, a businessman and reality television star who had never run for office in his life.

It also saw the most successful presidential run of a democratic socialist, Vermont Sen. Bernie Sanders, who remains in the race today even after the Associated Press and the networks reported that Clinton had enough pledged delegates and superdelegates to clinch the nomination.

While Clinton received a bit more support this week, likely because of her foreign policy speech in San Diego, where she unexpectedly took jab and jab – with great glee – at Trump, the presumptive Republican nominee.

She's also the most establishment candidate who's running, in a year where that's not exactly in vogue.

Pollsters warned that it's too early to tell how much support third-party candidates will get, because often voicing support for such a candidate is also an indicator that a person won't vote.