Ignore this entirely and focus on the week's substantive events: federal judges blocking voter roll purges, Supreme Court rulings on birthright citizenship, ACA subsidy expiration affecting millions, and Iran military strikes.
Pure political rhetoric with zero governance mechanism or institutional impact. Biden calling Trump a 'loser' two years post-debate is textbook noise—high meme-ability and media-friendliness but no constitutional harm. Timing amid major judicial blocks and Iran strikes suggests potential distraction value, but fundamentally this is interpersonal feud spectacle with no policy lever.