One of Donald Trump’s primary campaign promises has been the construction of a big, free wall, but on Thursday, he revealed a grave new threat from across the border that even his enormous, possibly CGI barrier is incapable of stopping.

On Monday, Democratic congressman Filemon Vela offered Donald Trump some unsolicited advice on the placement of his “frankly astounding and asinine” border wall, recommending the Republican nominee “shove it up [his] ass,” which is racist.