Los Angeles mayor works to tackle city's homelessness crisis as nation focuses on affordable housing

Across the United States, cities are bearing the brunt of homelessness, a problem fueled by a lack of affordable housing and issues like mental health and addiction that are worsened by poverty.

New York and Los Angeles alone account for around 40% of the country's unhoused population. Now, those cities are trying to find lasting solutions. 

In California, which leads the nation in homelessness and home prices, Los Angeles Mayor Karen Bass ran and won last year's election largely on a promise to house about a third of the city's 46,000 homeless people by the end of the year.