On Friday afternoon, President Donald Trump misspoke in a way that will make many in Missouri's two biggest cities do a double-take.

Speaking at the Project Safe Neighborhoods National Conference, about halfway through his roughly half-hour-long speech, Trump praised the crime-fighting effort "right here in St. Louis."

While lauding James Clark of the Better Family Life Initiative, Trump said, "James and his team have successfully ended more than 50 ongoing, escalating gunbattles between rival gangs right here in St. Louis" before thanking Clark and turning to the topic of criminal rehabilitation.

The problem? He was in Kansas City at the time.

A simple slip of the tongue? Of course.

But given the rivalry between people in the two cities, there's no chance it would go without notice, especially because early in his speech, Trump said of Kansas City, "I've been here a lot over the last couple of months."

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During his speech in Kansas City, Trump said Congress should provide all the money he wants for his promised U.S.-Mexico border wall, and called illegal immigration a "threat to the well-being of every American community."

Trump also mentioned he was nominating William Barr, the late President George H.W. Bush's attorney general, for the same role, saying Barr "deserves overwhelming bipartisan support" and saying he suspects Barr will "probably get it."