A new Public Policy Polling survey in Iowa shows Newt Gingrich clinging to the lead in the GOP presidential race with 22%, followed by Ron Paul at 21% and Mitt Romney at 16%.
Further back but within striking distance: Michele Bachmann at 11%, Rick Perry at 9% and Rick Santorum at 8%.
Key findings: "Gingrich has dropped 5 points in the last week and he's also seen a significant decline in his favorability numbers... The attacks on him appear to be taking a heavy toll... Paul meanwhile has seen a big increase in his popularity... There are a lot of parallels between Paul's strength in Iowa and Barack Obama's in 2008 -- he's doing well with new voters, young voters, and non-Republican voters."