(AP) — An outspoken critic of President Barack Obama, charged with conspiring to violate mine safety rules before a deadly explosion, is under orders not to tell jurors he's being persecuted by Democrats. [...] Blankenship hasn't checked his Republican politics at the courtroom door, and three weeks into his trial, the coal boss's lawyers have found ways to repeatedly suggest to jurors that regulators targeted his company for political reasons. Blankenship, whose unabashed bankrolling of West Virginia Republicans once inspired a John Grisham novel, "The Appeal," was an active blogger before the trial, blaming the nation's problems on media liberals, unions, "greeniacs," and much of corporate America. "There's no secret that long before the tragedy at the Upper Big Branch mine he was a controversial man, conservative Republican, dislikes the Obama administration, makes no bones about it, has been willing to spend his money in politics, is critical of government, especially critical of the Mine Safety and Health Administration the way....," Taylor said before prosecutors cut him off and Judge Irene Berger sustained the objection. In a congressional subcommittee meeting on mine safety Wednesday, Rep.