Donald Trump’s “defense strategy” that resulted in his impromptu speech at the closing of his fraud trial Thursday is likely to cause significant problems in the cases being overseen by special counsel Jack Smith — especially the D.C. Jan. 6 case, Slate reported. The D.C. case is a jury trial, and jurors’ ability to filter out Trump’s histrionics is questionable, according to Slate’s Robert Katzberg. “In this regard, it must be understood that in criminal trials when something improper is said in the jury’s presence by either counsel or a witness, the judge will pronounce it ‘stricken from the…