Sydney McLaughlin-Levrone wins women’s 400m World Championship gold in second-fastest time ever

American track star Sydney McLaughlin-Levrone won gold in the women’s 400m at the World Athletics Championships on Thursday, running the second-fastest time ever.

​ American track star Sydney McLaughlin-Levrone won gold in the women’s 400m at the World Athletics Championships on Thursday, running the second-fastest time ever. Read More Breaking News, Latest News and Videos | CNN