Analysis Summary:

The title is factually accurate. It correctly identifies the Oklahoma Attorney General as a Republican and states that he sued to block a school. This is supported by multiple sources. The title is minimally biased, with the inclusion of the Attorney General's party affiliation being the only potential slant.

Detailed Analysis:

• Claim 1:** "Oklahoma’s attorney general, a Republican, sued to block the school."
• Verification Source #1: Supports this claim, stating "Oklahoma's Republican Attorney General Gentner Drummond on Friday sued to stop a state board from establishing and funding what would be the..."
• Verification Source #4: Supports this claim, stating "Attorney General Gentner Drummond has filed a lawsuit to rescind Oklahoma's attempt to set up the nation's first religious charter school."
• Verification Source #5: Supports this claim, mentioning "...a Republican attorney general... in a separate lawsuit to stop Oklahoma from..."
• Verification Source #2: Supports the claim that the Attorney General is a Republican, mentioning "Oklahoma's Republican Attorney General Gentner Drummond filed a lawsuit..."
• Verification Source #3: Supports the claim that the Attorney General is a Republican, mentioning "Multiple Republican attorneys general have filed legal challenges..."

Supporting Evidence/Contradictions:

• The claim that the Oklahoma Attorney General is a Republican and sued to block a school is supported by Verification Sources #1, #2, #3, #4, and #5. There are no contradictions.
• The inclusion of the Attorney General's party affiliation could be seen as a slight bias, but it is a factual detail.