Although Tim Pawlenty announced the formation of a presidential exploratory committee last week, there was no change in his positioning in Gallup’s March 14-27 polling compared with the previous two-week rolling average.

Indiana Gov. Mitch Daniels’ and Romney’s Positive Intensity Scores each rose by five points from two weeks ago — Daniels’ from 10 to 15, and Romney’s from 15 to 20. This week’s update puts Romney in a tie for second place behind Huckabee for the first time.

This marks the first report on Republicans’ views of Herman Cain, a former restaurant association executive from Georgia, who has formed a presidential exploratory committee. Cain is not well known among Republicans — 21% recognize his name — but generates enthusiasm among those who do know him, giving him an overall Positive Intensity Score of 19.