The man looks tired.Veteran observers of Democratic House Leader Hakeem Jeffries know at a glance when the fellow isn’t catching his Zs.Some politicians bark gruffly when they are under pressure. Others become wildly frenetic. Some pick fights. Others go quiet, and retreat. Jeffries gets puffy.It has been one of those tells that longtime Empire State and Washington, D.C. hands have noticed for years. When the Brooklyn Democrat appears on morning television looking a little baggy, a tad swollen around the eyes; when he speaks in his trademark measured cadence but stumbles over the elucidation; when he presents the unmistakable glaze of someone who …