You might think that—given the chance to chide the star of a competing network—CNN would have called out MSNBC’s Rachel Maddow over her failed, overhyped “scoop” on Donald Trump’s taxes. But nary a discouraging word about Maddow could be heard on CNN this morning. Liberal media solidarity more important than beating the competition? Instead, commenting this morning on the release of Donald Trump’s 2005 tax return, CNN’s Chris Cuomo described the Alternative Minimum Tax [AMT] he paid as a “benefit” to Trump. It was just the opposite. The AMT Alternative Minimum Tax is designed to prevent people with large incomes...