The latest shot in the never-ending Louisville political graffiti wars has landed, spurred by President Donald Trump's racist "go back" tweet targeting four minority congresswomen.

Resist 45, a group in Louisville that is against President Donald Trump's agenda, tweaked a billboard overnight by the Kentucky Exposition Center that had advertised horse racing coverage to say: "Trump 2020: America's Day as the Racist."

The sign, which could clearly be seen by commuters Tuesday morning on Interstate 65 North, had promoted Churchill Downs' live racing coverage on the TV network FS2. "America's Day at the Races," it proclaimed, before the new paint job.

The new look didn't last long, though. The ad on the billboard was replaced about 11 a.m. with a new advertisement for WHAS11 TV.

Usually this is the part where we explain what the graffiti artist may have meant. This time the "work" kind of speaks for itself, but we'll run through it anyways.

Trump has been under fire this week over Twitter posts that appeared to target four minority Democratic congresswomen: U.S. Reps. Alexandria Ocasio-Cortez of New York; Ilhan Omar of Minnesota, Ayanna Pressley of Massachusetts and Rashida Tlaib of Michigan.

"Why don't they go back and help fix the totally broken and crime infested places from which they came," Trump tweeted over the weekend.

The tweet, which was met with outrage in many circles, has drawn little response from much of Kentucky's Republican congressional delegation. Sens. Mitch McConnell and Rand Paul, for instance, have yet to say anything.

But it was almost a sure bet that Resist 45 wouldn't let the comment go unnoticed.

Just last week, an overpass over Interstate 64 East was defaced with two messages – "Love Trump USA" on Sunday, and then a series of anti-Trump phrases on Monday.

'We can be better than that':Racist graffiti removed from the Big Four Bridge

Lucas Aulbach can be reached at laulbach@courier-journal.com, 502-582-4649 or on Twitter @LucasAulbachCJ. Support strong local journalism and subscribe: www.courier-journal.com/lucasa.