LINCOLN, Neb. (AP) — A proposal requiring members of the Nebraska State Board of Education to add disclaimers to their written communications has one embattled member accusing the others of unfairly targeting him.

Patrick McPherson lashed out Friday against the proposal, which would add a disclaimer to written and electronic comments indicating they don’t represent the opinions of the board. McPherson says the proposal seems to be an attempt to stifle his free speech.

The proposal follows calls for McPherson’s resignation by those who say he should be held accountable for several blog posts on his former conservative blog, “Objective Conservative,” that referred to President Barack Obama as a “half-breed.”

McPherson has denied writing the posts, but has refused to identify the author