Poor old Newt. Live by the sword, die by the sword. After a disappointing fourth place finish in the Iowa caucuses, Newt Gingrich complained about all of the negativity from his rivals in the GOP primary race and then proceeded to rip into Ron Paul and Mitt Romney during his speech in Iowa this Tuesday evening.

Here's a bit more from the AP -- Gingrich vows to fight on after poor Iowa showing

Former House Speaker Newt Gingrich is blasting former Gov. Mitt Romney as someone who can't bring enough change to Washington.

Speaking on Tuesday after a fourth place finish in the Iowa caucuses, Gingrich said Romney is a nice man but incapable of doing what's necessary to fix the country. He also criticized Romney for running a negative campaign.

Gingrich said the race for the GOP nomination was just beginning. He vowed to go on and said he is the candidate to create change.

Gingrich congratulated two other contenders — Rick Santorum and Ron Paul — but said he will air contrasts between himself and Romney.

Gingrich is really not happy about all of the ads that were run against him over the last few weeks. I look for this to get really ugly in the upcoming month. Despite the fact that Gingrich is largely responsible for the nasty rhetoric we see from Republicans now and that he taught the art of relentlessly attacking your political opponents as your enemy, he's not too happy having those tactics being turned back in his direction, and he looks like he's taking the attacks personally. I look for him to go after Mitt Romney relentlessly in the near future. Pass the popcorn if Gingrich stays in the race, which it appears he's going to do for now.

His buddies over at Fox were already completely writing off his fourth place finish along with Ron Paul's close third and calling this a two-man race. I think they're all firmly in Romney's camp now, so I would expect to see them start pressuring Gingrich to drop out of the race.