By REUTERS
WASHINGTON - Republican presidential frontrunner Mitt Romney has erased rival Rick Santorum's lead among voters in Santorum's home state of Pennsylvania which holds a crucial primary next month, a poll on Wednesday showed.Santorum, who represented the state in Congress for 16 years until he was defeated in a Senate election in 2006, saw his lead over Romney evaporate from 29 points to 2 points in the past month, according to the Franklin and Marshall College poll conducted from Lancaster, Pennsylvania.Pennsylvania's primary election takes place on April 24, along with liberal northeastern states like New York and Connecticut which Romney is favored to win.If Santorum loses or scrapes by with a narrow win in Pennsylvania, he will come under pressure from senior Republicans to pull out of the race.
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