Santorum's push on social issues a challenge for Romney (Reuters)

[unable to retrieve full-text content]Reuters - Republican presidential hopeful Rick Santorum's hard-charging focus on social issues has created a quandary for rival Mitt Romney, who usually prefers to steer clear of such sensitive topics and stress his business credentials.

Source: http://us.rd.yahoo.com/dailynews/rss/gop/*http%3A//news.yahoo.com/s/nm/20120222/pl_nm/us_usa_campaign_social

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