By Dana Blanton

Democrat Hillary Clinton and Republican John McCain are the national front-runners for their party's presidential nominations, according to a FOX News poll released Friday, and Clinton is seen as the candidate most prepared to begin leading the country on "day one."

That's the good news for Clinton. The bad news for the former first lady is she is also seen as the candidate most likely to "do anything - including something unethical - to win," and most likely to embarrass the country.

This is the first FOX News national poll conducted since Democrats John Edwards and Dennis Kucinich, and Republicans Rudy Giuliani and Fred Thompson dropped out of the race.

In the narrowed field, McCain now leads among Republicans with 48 percent, far outdistancing Mitt Romney at 20 percent and Mike Huckabee at 19 percent. Ron Paul receives 5 percent. The number of undecided voters has dropped from 13 percent in December to 5 percent today.

On the Democratic side, Clinton is still the top choice, although by a much closer margin today. The new poll shows 47 percent of Democrats back Clinton and 37 percent Barack Obama. Last month Clinton had a 29-point advantage - 49 percent to Obama's 20 percent, with Edwards capturing 10 percent.

Click here to read more about the FOX News poll and to see the full results.