Trump says he'll match donations to overcome $40 million gap

The summer presidential campaign kicked off with a striking fundraising gap between the two presumptive nominees -- not only does Hillary Clinton lead Donald Trump in national polls, but she has raised over $40 million more. For a closer look at Trump’s finances and what they could mean for his chances in November, Gwen Ifill talks to Matea Gold of The Washington Post and Susan Page of USA Today.