Rick Perry Is Still In It?

If you followed the news from the Iowa caucuses last night, you would have seen that Texas governor Rick Perry appeared to be ready to throw in the proverbial towel:
Following a disappointing projected fifth place finish in the Iowa caucuses, Texas Gov. Rick Perry said he'll return to Texas on Wednesday to reassess his candidacy.
"With the voters' decision tonight in Iowa, I decided to return to Texas, assess the results of tonight's caucus, determine whether there is a path forward for myself in this race," he told supporters late Tuesday night at his Iowa headquarters in West Des Moines.

Earlier Tuesday, Perry had vowed to carry on campaigning, if he finished poorly in Iowa, saying that results from the nation's first Republican nominating contest wouldn't be the be-all end-all in the presidential election.

"We have been told to hold until we hear from Austin," said a Perry source in South Carolina, where the candidate was preparing to launch an aggressive statewide bus tour on Wednesday. "It looks like he is not coming this week. He has definitely canceled his plans."
Then today we got this from Governor Perry:

So, the question is this: did Michele Bachmann's exit from the race for the GOP nomination influence Perry's decision? Is he going to continue to run? How will that affect Mitt Romney and Rick Santorum, especially in a state like South Carolina?