POSTED: Tuesday, April 3, 2012 - 7:00pm
UPDATED: Tuesday, April 3, 2012 - 7:04pm
NBC NATIONAL NEWS —
Voters head to the polls for three republican primaries and today, a total of 92 delegates are up for grabs.
In Maryland, recent polls show Mitt Romney ahead in that state in a fight for their 37 delegates.
The race is tighter in Wisconsin, where 39 delegates are at stake. Both Romney and Rick Santorum have campaigned hard, each reaching out to Wisconsin voters.
The District of Columbia also has a primary today, but Rick Santorum is not on the ballot; the 16 delegates at stake there today are expected to go to Romney.