President Trump delivered one of the best speeches of his political career Thursday night as he accepted the Republican National Convention’s nomination for a second term, boosting his chances for reelection. The president’s 70-minute speech was highly effective in the sense that he drew clear and arguably persuasive contrasts between himself and former Vice President Joe Biden in many areas, including their broad-based visions for America, the economy, and law enforcement. In a way that was reminiscent of Trump’s positioning during the 2016 campaign, the president made it clear that he is running as an outsider and a non-politician against...