The Biden and Trump campaigns hope to highlight their opponents’ weaknesses at Thursday night’s presidential debate. For Donald Trump, he plans to use this week’s debate to hit Joe Biden hard on immigration and inflation. Polls show that both topics are top issues for Americans. He’s also expected to question the president’s physical and cognitive fitness for office. Meanwhile, Mr. Biden will continue to issue warnings about the future of democracy under another Trump administration. And the president also plans to make a case for abortion rights. GC, Wash.