Poll: 58% Of Republicans Disapprove Of Candidates

How's that for a majority of support?
The nominating process may officially be underway, but Republicans have yet to enthusiastically embrace a potential nominee for president - and despite the late date, most would like to see other candidates enter the race, according to a new CBS News poll.

The survey finds that 58 percent of Republican primary voters want more presidential choices, while just 37 percent say they are satisfied with the current field. The percentage of Republican primary voters that wants more choices has increased 12 percentage points since October.

Mitt Romney, the frontrunner for the nomination, has struggled to break 30 percent support in state and local polls in an election cycle that has seen multiple candidates move ahead of Romney in the polls before seeing their support erode. In this national survey, taken after Romney's narrow victory in the Iowa caucuses, the former Massachusetts governor leads the field - though he holds just 19 percent support. Only 28 percent of GOP primary voters say they've made up their mind, and just 20 percent who've made a choice strongly favor their candidate.

It's mathematically possible for another candidate to enter the race as late as early February and still win enough delegates to take the nomination, though some deadlines for candidates to get on state ballots have already passed, including those in delegate-rich Virginia and Illinois. A late entry into the GOP race would come with potentially-overwhelming obstacles, including the need to instantly build a national campaign apparatus and do the hard work of getting on state ballots in an extremely compressed time period.
My emphases.

While it may be "mathematically possible" for someone else to throw their hat into the proverbial ring, I think that it is 'statistically unlikely' for someone to do so -- for the reasons mentioned in the article. All of the other candidates have, at the very least, a somewhat organized operation on the ground. Save for someone with an existing cult following like, say, Bobby Jindal or (on the Democratic side) Hillary Clinton, I think it is highly unlikely -- and for the most part logistically impossible, for a new candidate to enter the race and have a fighting chance.

But, the good news is that Republicans are in agreement; they want to vote for... someone else.