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Impeachment trial: First day of Q&A session concludes
By Grace Segers, Melissa Quinn & Stefan Becket
All the president's disloyal men: Trump demands fealty but inspires very little
By Ashley Parker
Senate and John Roberts face possibility of epic tie on witnesses
By Burgess Everett & John Bresnahan
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Alan Dershowitz argues presidential quid pro quos aimed at reelection are not impeachable
By Paul LeBlanc, Marshall Cohen & Nikki Carvajal
Trump is being impeached over an extortion scheme, not a 'policy dispute'
By Thomas M. Nichols
Presenting the ludicrous 'Dershowitz Doctrine'
By Paul Begala