Tanzina Vega

Residents of Ferguson, Mo., say the fatal police shooting of teenager Michael Brown "broke the camel's back" in a community that's tired of a mostly-white city government that they believe doesn't take seriously the concerns of its mostly-black citizens.

Convincing millions of young people -- especially blacks and Latinos -- to buy insurance through HealthCare.gov is consuming every spare moment at the White House as President Barack Obama and his aides race against a March 31 deadline, when enrollment ends for the year.