Story highlights New Hampshire GOP chairwoman Jennifer Horn has criticized Donald Trump's rhetoric

New Hampshire GOP bylaws require that the party chair remain "strictly neutral" in the primary race

Derry, New Hampshire (CNN) Tensions between Donald Trump's campaign and the New Hampshire Republican Party have escalated to the point where the GOP front-runner's supporters are calling for the state party chair to be fired.

"I'm not sure if she's actually the chair of the Republican Party or the Democratic Party, attacking Republican candidates," Trump campaign manager Corey Lewandowski told CNN after New Hampshire GOP Chairwoman Jennifer Horn criticized the candidate's rhetoric. "So it's very difficult to work with a GOP establishment when they don't believe that your candidate is the right one, and it's really shameful."

Horn had previously criticized Trump for his comments disparaging Fox News host Megyn Kelly and for criticism of Arizona Republican Sen. John McCain, but in mid-November Horn went further and told the Boston Globe she did not expect Trump to win the important primary state

"Shallow campaigns that depend on bombast and divisive rhetoric do not succeed in New Hampshire, and I don't expect that they will now," Horn told the paper. "Big rallies are a lot of fun, but in New Hampshire, voters are looking to have that real conversation with a candidate."

After Trump this week called for a ban on Muslims entering the country, Horn labeled the action "unconstitutional."

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