All eyes on New Hampshire's independent voters following reports of Democrats voting for Nikki Haley in Iowa

All eyes will be on New Hampshire's undeclared, or independent, voters next week for the first-in-the-nation presidential primaries following reports of cross-party voting by Democrats in support of former U.N. Ambassador Nikki Haley during Monday's Iowa caucuses.

Although former President Donald Trump achieved a historic victory in the Hawkeye State with more than 50% of the vote, well ahead of Haley's third-place finish, it wasn't for lack of trying by Democrats and independents opposed to the former president. They reportedly showed up at some caucus sites and caused a shortage of party registration forms.

Even though registered Republicans were the only voters allowed to vote in Iowa's caucuses, the state allows same-day party registration, meaning Democrats and independents could show up, register and vote all in one evening.

TRUMP, HALEY TURN UP THE VOLUME ON EACH OTHER AS GOP PRESIDENTIAL PRIMARY SLUGFEST MOVES TO NEW HAMPSHIRE

At one caucus site in Johnson County, the only county Trump lost to Haley, by a single vote, caucus workers had to scramble for more printer paper to have enough forms to accommodate those trying to switch their party registration to Republican, according to CBS News.

Other reports also pointed to meddling by Democrats, including one voter who told Axios that switching party registration for a day was "a chance to diminish Trump's inevitability." Another said, "I believe all Americans should cast a vote against Donald Trump every chance we have."

By contrast, David Barker, the treasurer of the Iowa Republican Party, told Fox News Digital that although there were some new registrations for the party from Democrats and independents, a vast majority of those registering on the night of the caucus