[cut] The pictures and film of Trump rallying the crowd will likely be the enduring image of this election and perhaps his entire political career. Even before President Biden’s catastrophic debate last month, Trump had run on a platform of strength, portraying himself as a politically muscular figure against a weak and aging incumbent president. Next week’s Republican nominating convention will deliver Trump a hero’s welcome and an audience to match, befitting a party leader who had a brush with death. “The raised fist will become the iconic symbol of the convention,” predicted longtime GOP strategist Mike Murphy. Convention planners...