Monday on the News Hour...

Monday on the News Hour, the U.S. temporarily lifts sanctions on Iran as Vance says Tehran will allow U.N. nuclear inspectors back into the country. A look at the U.K.’s uncertain political future after Starmer resigns as prime minister. The life and legacy of the late Fed Chair Alan Greenspan. Plus, the scientist and his family who’ve been tracking melting glaciers for nearly half a century.