A new American Research Group poll in New Hampshire finds President Trump leads Gov. John Kasich (R) in a possible presidential primary by 6 points, 48% to 42%.

Trump leads Sen. Jeff Flake (R-Ariz.) by a wider margin, 49% to 33%, with 18% of voters undecided.

A new American Research Group poll in New Hampshire finds Gov. John Kasich would top President Trump in a hypothetical Republican presidential primary, 52% to 40%.

“We have a massive drug problem where kids are becoming addicted to drugs because the drugs are being sold for less money than candy. I won New Hampshire because New Hampshire is a drug-infested den.”

— President Trump, in a transcript of his first call with Mexican President Enrique Peña Nieto.

A new WBUR poll in New Hampshire shows Hillary Clinton barely leading Donald Trump in the presidential race, 44% to 42%.

Key finding: Just 35% of New Hampshire voters have a positive view of Clinton; only 33% feel that way about Trump.

Early exit polls in New Hampshire find that nearly half of Republican primary voters say they finally picked their candidate only within the last few days, or after Saturday’s Republican presidential debate, according to ABC News.

Also interesting: Nearly half of Republicans say they’re looking for a candidate from “outside the political establishment.”

Boston Globe: “Since 2000, Laconia, located in the Lakes Region, has proven to be a near-perfect reflection of the statewide vote in the presidential primaries for both parties. Not only did Laconia pick the winners in recent New Hampshire primaries, but its results mimic the second and third place finishers for both parties statewide, according to an analysis from pollster David Paleologos. Even more telling: Laconia’s results came within five percentage points of the statewide results in every competitive primary since 2000.”

“As voters in New Hampshire headed to the polls Tuesday, Republican campaigns were bracing for a roller-coaster night and preparing for the possibility of a long primary campaign,” the Wall Street Journal reports.

“New Hampshire has always been an uncertain contest for pollsters and pundits, and an overnight snowstorm added to the uncertainty about turnout. Democrats and undeclared voters are allowed by law to vote in the state’s primary, the nation’s second presidential nominating contest, making the outcome notoriously difficult to predict.”

First Read: “For a moment, forget the race for second (or third or fourth) place in the Republican primary. And stop speculating about whether Hillary Clinton can bring the Democratic contest to single digits. Instead, devote your attention, at least for the time being, to the two men who have consistently led the New Hampshire primary amid all of the other uncertainty — Donald Trump and Bernie Sanders. Think about it: Trump’s been ahead in 75-straight New Hampshire polls going back to June… while Sanders has led 40-straight Granite State surveys going back to early January. Anything — and we mean ANYTHING — can happen tonight. But Donald Trump and Bernie Sanders are likely headed to victory tonight, and that would be no small feat.”

“Six months ago, this dual outcome would have been dismissed as pure fantasy. Today, it may be the biggest signal yet that the country is so fed up with its political leadership that voters in New Hampshire will turn to a democratic socialist and a reality TV star to shake things up.”

Sam Wang: “I am not sure that any of the above-listed non-Trump candidates will exit the race after today. Cruz is in to stay. Kasich has risen slowly since the new year, and a strong finish today would keep him in the race. In fact, I give Kasich an even-odds chance of ending up in second place. Already that’s four candidates – a threshold I have identified as problematic for the Republican Party.”

“Alternatively, Jeb Bush could pick up a few points, and decide to stick around along with his super-PAC money. Christie’s support is pretty low, but he had a little too much fun in Saturday’s debate to get out now. All in all, it seems likely that after New Hampshire, the field will remain divided for a while longer.”

The latest UMass-Lowell tracking poll in New Hampshire finds Donald Trump leading the GOP presidential race with 34%, followed by Ted Cruz at 13%, Marco Rubio at 13%, John Kasich at 10% and Jeb Bush at 10.

In the Democratic race, Bernie Sanders leads Hillary Clinton, 56% to 40%.

From the new Monmouth poll in New Hampshire:

Barely half (49%) of likely Republican primary voters say that they are completely decided on their candidate choice just days before Tuesday’s election. Another 31% have a strong preference but are still open to considering other candidates. One-fifth either have only a slight preference (12%) or are really undecided (9%).