(CNN)Donald Trump trained his eyes Monday on a surging Republican rival in New Hampshire, Chris Christie, using a newspaper's backing of the New Jersey governor to lacerate Christie's economic record.
Trump leads the GOP field comfortably in the first-in-the-nation primary state, but on Monday took his first shots at Christie, who potentially threatens Trump's dominance there. The comments in Nashua came as Trump escalated his war with Joe McQuaid, the publisher of New Hampshire's largest newspaper, the Union Leader, which has endorsed Christie.
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Trump continued direct attacks against the newspaper's publisher Tuesday evening, tweeting "Shows how dumb Joe McQuaid (@deucecrew) of the dying Union Leader is to put out the letter I wrote saying why I didn't do his failed debate!" And "Joe McQuaid (@deucecrew) of the dying Union Leader wanted ads, lunches, donations, speeches from me, and tweets---very unethical."