Milwaukee, Wisconsin CNN — Two days after being tapped as Donald Trump’s running mate, Ohio Sen. JD Vance introduced himself to voters in a speech that highlighted the populist direction the two aim to take the Republican Party — and the nation. Vance’s Republican National Convention speech capped a night Republicans spent prosecuting what they see as President Joe Biden’s biggest foreign policy failures and their consequences. Gold Star families hammered Biden’s handling of the 2021 Afghanistan withdrawal. The parents of a Hamas kidnapping victim led chants of “Bring them home.” A Jewish Harvard University graduate who is suing the...