Bill Clinton, boosting Harris, returns to a changed party

]The last time the Democratic Party gathered for a convention at the United Center, Bill Clinton accepted the nomination in 1996 for his reelection bid. 

Nearly 30 years later, the former president, 78, will take the stage in the same arena on Wednesday night to make the case for Vice President Kamala Harris. 

Sources familiar with the speech— his 12th consecutive address to a Democratic convention — say it will be hopeful and aspirational, on the heels of what has been a tumultuous time for the party following President Biden’s withdrawal from the race. 

These sources...