CBS News (includes video):

As presidential candidates storm Iowa making a final push this weekend, former Pennsylvania Sen. Rick Santorum is getting increasing attention as polls are showing for the first time that he could finish strongly here and have a big impact on the GOP race, CBS News political correspondent Jan Crawford reports.

In the Hawkeye State, Santorum is the man of the moment.

"Folks know what I believe in," said Santorum. "That's what they're looking for: Someone they can trust, someone who's authentic."