New now: Clinton tops Christie, other GOP rivals in crucial Ohio
Ukraine latest:
U.S. slaps travel restrictions on 20 Ukraine officials over violence but experts expect little impact
Obama says US condemns in 'strongest terms' violence in Ukraine
Ukraine comments underscore how NAFTA trade partnership is drifting
Money matters:
The inside story of WhatsApp, just purchased by Facebook for $19 billion dollars. It's the latest move from the social media site, who experts say is trying to corner the market on digital messaging. To put it in perspective, Facebook only paid $1 billion to acquire the popular photo sharing site "Instagram" in 2012.
Winning $400 million Powerball ticket sold in California
By Ali Watkins and Julie Moos
McClatchy Washington Bureau