A member of the Wall Street Journal’s editorial board this week declared former President Donald Trump to be the victim of a “legal jihad” — and was promptly shredded Thursday by a New York Magazine writer who says one simple point disproves the conservative newspaper’s thesis. “Trump is a huge crook,” writes commentator Jonathan Chait. Chait on Thursday targeted Wall Street Journal editor Matthew Hennessey’s column that opined the former president faces three criminal trials — and has a criminal conviction behind him — because the justice system has been “politicized.” Want more breaking pol…