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Previewing a poll to be released Thursday the Democrat-leaning Public Policy Polling says Donald Trump's standing is significantly diminished:

Trump's unexpected defeat at the hands of Sen. Ted Cruz in the Iowa Republican Caucus destroyed Trump's presumed invincibility and should surely diminish Trump. That it was a come from behind upset victory for Cruz makes it even more powerful. Now the Iowa result will impact the New Hampshire Primary.

Even Trump now admits that his cut and run from the Iowa debate stunt to avoid tough gotcha questions from Megyn Kelly and debate Cruz was a mistake. And Trump's cowardly debate avoidance caused him to lose his bet that he could run against Fox News.

But there is more to Trump's diminishment. Yes, Trump has his die-hard faithful followers. But they are folks who tend not to vote. The Trump campaign finds it difficult overcome Trump's unpopularity, horrific unfavorable ratings, New York values, and his problem with women. In addition the recent focus on Trump's failures must also help to diminish the Donald.