Presidential candidate Marco Rubio is balking at the after-effects of the GOP debate fiasco. The Florida senator was riding on the coat tails of a successful run at the previous Iowa caucus.

While many were taken by Marco Rubio's charisma and wit during the Iowa caucuses, Rubio now finds himself to be in the hot seat following Saturday's GOP debate in which he denounced President Barack Obama. In addition, it was noted by his critics that his debates seemed scripted, uttering familiar lines that were repetitive and redundant.

Fox News Latino reports that while Marco Rubio has enjoyed a strong following in Iowa, his critics have made a mockery out of the Florida senator, saying that the presidential hopeful tends to be on auto-pilot when he speaks, which was apparent during his GOP debate in New Hampshire, reports The Washington Post.

The presidential candidate appeared to be flustered and at a loss for words during the campaign event, prompting the junior senator to take a tumble over his own words. Rubio challenged Obama's "flawed" term as president but was clearly unprepared at New Jersey Gov. Chris Christie's punches.

The presidential candidate, however, did manage to stay afloat by dodging other candidates and choosing to stick to his safeties, such as discussing his own policies and campaign proposals. The strategy worked, managing to keep him afloat so far.

However, Rubio's political adversaries have criticized the young senator for cracking under the slightest pressure, which they believe is not befitting for someone who is to take the role as the commander-in-chief of the United States.

Jeb Bush, for instance, has called the Florida senator "too young" and full of ideals. He added that Rubio has never been challenged enough to have a backbone.

While Bush did admit that he admired the young senator's intelligence and charisma at one point, he said that this would not be enough in politics. He fears that Rubio's taking the heat and backing away could be a sign of things to come. Bush believes that the senator has not encountered anything that would force him to grow a backbone and stand his own ground when facing conflict.

Rubio's poor performance in Monday's debate could affect the rest of his political campaign but that remains to be seen, for now.