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Obama maintains narrow lead over Romney

Mitt Romney falls behind in the polls Credit: Reuters

President Barack Obama is still holding a narrow advantage over presumptive Republican nominee Mitt Romney in three of the most pivotal presidential battleground states - Florida, Ohio and Virginia, according to new NBC-Marist polls.[

](http://firstread.msnbc.msn.com/news/2012/05/24/11854807-nbc-polls-obama-edges-romney-in-three-key-battleground-states?lite)More on this from MSNBC

Mitt Romney wins Washington state caucus

Mitt Romney breezed to an easy victory in the Washington state Republican presidential caucuses, earning another momentum boost heading into next week's crucial "Super Tuesday" contests in 10 states.

With about 80 percent of precincts now in, Romney had 36 percent support.

The outcome marked a fourth state win for Romney this week, after the former Massachusetts governor picked up contests in Michigan, Arizona and Wyoming. He also won the other most recent vote, the Maine caucus on February 11.

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Voter numbers in Michigan and Arizona

Rick Santorum has already conceded both states to Mitt Romney, but officially not all votes have been counted.

Here are the latest figures from CNN:

In Michigan, where 92% of votes are reported;

  • Romney: 395,470 (41%)
  • Santorum: 366,358 (38%)

And in Arizona, where 83% of votes are reported;

  • Romney: 211,747 (47%)
  • Santorum: 118,023 (26%)

Romney wins Michigan, say projections

Fox News, NBC News and CNN have all declared Mitt Romney the projected winner in Michigan.

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Romney opens up lead in Michigan race

With 70% of the votes counted, this is how the Michigan Republican primary stands, according to CNN:

  • Romney: 279,198 (40%)

  • Santorum: 251,122 (36%)

Evan McMorris-Santoro is a US reporter within the Santorum camp tonight:

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