A former New Hampshire GOP chairman, Fergus Cullen, has challenged the legitimacy of Donald Trump's place on the Republican primary ballot. Cullen raised questions about whether Trump actually belongs to the GOP.

Cullen filed a formal complaint with the Ballot Law Commission, arguing that Trump has expressed views over the course of several decades that appear inconsistent with the Republican Party's platform, as the Boston Globe noted.

The complaint has provided the terrain for the newest battle between Trump and supporters of Ohio Gov. John Kasich. A pro-Kasich super PAC, New Day for America, supports Cullen's efforts to get Trump off the ballot.

"Like many other Republicans, we question Donald Trump's conservative credentials and are happy to support Mr. Cullen's efforts to challenge Trump's standing on the New Hampshire Republican primary ballot," said Connie Wehrkamp, New Day For America spokesperson, in a statement. "Unlike Trump, Ohio Governor John Kasich is a proven conservative who will stand up for the values Republicans hold dear."

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