Good morning. Temperatures today will be in the mid-30s to mid-40s from north to south with early morning showers giving way to snow up north and sun and wind elsewhere. Today we're talking about yesterday's election, see the full results here.

• Maine’s Democratic presidential primary was too close to call early Wednesday morning, with Vice President Joe Biden on the verge of an upset over Vermont Sen. Bernie Sanders in a race shaped by late dropouts in the crowded field.
  
  Biden led with 34.1 percent of votes in Maine to Sanders’ 33.2 percent.
  
  It was a stunning day for Biden, who won Texas and Massachusetts to cement his front-runner status nationally. Sanders won California, the state carrying the most delegates. Biden ran no campaign in Maine and Massachusetts while Sanders and Warren organized here for months.
   
• PLUS:
  • 6 takeaways from Super Tuesday
     
  • Mike Bloomberg to reassess after disappointing Super Tuesday results

• A new Maine law tightening school vaccine requirements will go into effect after voters rejected a people’s veto challenge on Tuesday, making the state the fifth to bar parents from exempting children from vaccines for nonmedical reasons.
  
  The law will take effect in September and apply to children and others attending public and private K-12 schools, colleges and universities and employees of nursery schools and health care facilities. 

• As of 6 a.m., the Bangor Daily News has 85.9 percent of municipalities reporting election results. Check our town-by-town database for the latest returns.
   
• In Brewer, voters chose Democrat Kevin O’Connell, a former mayor, to represent them in the Maine House.
   
• In Portland, voters approved a measure to expand the use of ranked-choice voting in city elections by a wide margin.