Hillary Clinton has made her presidential plans official and as it turns out, she may have reason to smile.

A recent Pew Research poll shows more people in the U.S. call themselves Democrats than Republicans. Overall, 48 percent of those polled said they consider themselves Democrats as opposed to 39 percent who said they are Republican.

And while President Obama has faced poor approval ratings, those feelings apparently don't translate to the general electorate. The 10-point Democratic advantage is about the same as in 2012 when Obama defeated Mitt Romney to win a second term.