text:  The new British prime minister is on tour through the UK before he heads to Washington for a NATO summit this week. Here's NPR's Lauren Frayer. Rachel Reeves is the UK's first female chancellor of the Exchequer, the UK equivalent of Treasury Secretary. She's called herself an admirer of Janet Yellen's and has studied the Biden administration's economic plans. But she's also managing expectations here. I know we can't turn things around overnight.