CLEVELAND — Mike Pence had the stage to himself Wednesday night. But even with Donald Trump off stage and watching, a different, Texas-sized echo was still ringing. After largely being overshadowed by Trump during his official debut last weekend, the billionaire businessman’s running mate used the prime-time stage on Wednesday night to bridge the divide between the conservatives who have fallen in line behind Trump and those still holding out. He also tested out his new role as Trump's No. 1 attack dog on Hillary Clinton. But Pence's prime-time moment came as Republicans were still picking their jaws up from...