Bill O'Reilly (Credit: Fox News) WATCH: Bill O'Reilly accuses Obama of allowing his "emotional attachment to Islam hurt the United States" His evidence? The president once attended the Muslim wedding of his half-brother, which is somehow relevant

On "The O'Reilly Factor" Wednesday evening, host Bill O'Reilly attacked President Barack Obama for having an "emotional attachment to the Muslim world [that] has hurt the United States."

"Many Americans, including this one, believe Barack Obama's emotional attachment to the Muslim world has hurt the USA," he began. "There is no question that the Obama administration's greatest failure is allowing the Islamic terror group ISIS to run wild, murdering thousands of innocent people all over the world, including many Muslims."

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"Mr. Obama has never acknowledged this mistake, nor does he define the ISIS threat accurately," O'Reilly continued. "That group is killing innocent people in order to impose a radical version of Islam on the world. The jihad is solely based on theology, perverted as it may be. President Obama, as we all know, will not even use the words Islamic terrorism."

He explained that the reason for the president's inability to utter the words "Islamic terrorism" is that he was raised among Muslims and attended a Muslim wedding in the 1990s.

"Barack Obama's father, who abandoned his family, was a Muslim who eventually turned atheist," O'Reilly said, as if respecting a religion outside one's own was a genetic matter. "Then his mother married another Muslim, moving young Barry Obama to Indonesia, where he was exposed to the Islamic world even though he did attend a Catholic school in first grade. According to his half-sister, Barack Obama attended his half-brother's wedding in the early 1990s. Malik Obama was a Muslim."

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Does O'Reilly have any evidence that Obama attended his half-brother's wedding in the 1990s? "The Factor has obtained pictures allegedly from that wedding, which we believe was held in Maryland," he said. "Details on the ceremony, the exact location, and whether the reports that Barack Obama was the best man are difficult to verify at this point."

Of course, how this evidence is relevant to proving anything other than him having attended his half-brother's wedding is still unclear.

Watch the entire "Talking Points Memo" segment below via Fox News.