Poll: Clinton currently leading all Republicans

A new poll indicates that Hillary Clinton is not only the front-runner for the Democratic presidential nomination in 2016, but a front-runner for the White House itself.

Clinton leads all the Republican contenders in early general election match-ups, according to the NBC News/Wall Street Journal survey.

The former secretary of State, senator, and first lady leads Jeb Bush by 48%-40%, Marco Rubio by 50%-40%, and Scott Walker by 51%-37%.

Of course, the general election itself is more than 16 months away.

In the race for the Democratic nomination, Clinton enjoys a huge lead nationally, with 75% of Democratic primary voters favoring her. Bernie Sanders is second at 15%, followed by Jim Webb (4%) and Martin O'Malley (2%).

NBC News, however, reports that the poll includes "two cautionary notes" about Clinton:

"One, 62% of Democratic primary voters want her to have a challenging primary to test her for the general election, signaling they don't want a coronation to the nomination.

"And two, the poll shows a generic Democrat defeating a generic Republican in the 2016 presidential race by just three points, 39% to 36%, suggesting that the general election will be competitive."