Here are the highlights of Hillary Clinton's speech.

Hillary Clinton plans to pummel Donald J. Trump’s economic proposals on Tuesday, portraying Mr. Trump as an uncaring and unscrupulous businessman whose reckless policies would lead to a new financial crisis and a surge in unemployment.

Appearing in Columbus, Ohio, Mrs. Clinton, the presumptive Democratic presidential nominee, will argue that Mr. Trump’s proposals to increase tariffs on imported goods, cut taxes for the wealthiest Americans and try to get creditors to accept less than full payment on the national debt would lead to a financial meltdown worse than that of 2008, her aides said in interviews.

Her campaign manager, Robby Mook, told Sirius XM radio on Monday that Mr. Trump’s proposals “would send us into an economic ice age.”

Mrs. Clinton will also tear into Mr. Trump’s private-sector record, part of an effort by her campaign and Democratic allies to turn Mr. Trump’s business reputation against him and persuade voters that he has trampled over working people at every stage of his career.