The presidential election is two years away, but it looks like Iowa voters are shifting away from Chris Christie and moving to Hillary Rodham Clinton.

Clinton now leads Christie 48% to 35% among Iowa voters, according to a Quinnipiac University poll released Thursday. The former secretary of State — who hasn't said whether she'll seek the Democratic presidential nomination — leads four Republicans in the survey by at least 10 percentage points: Christie, Jeb Bush, Ted Cruz and Rand Paul.

A Clinton vs. Paul matchup is the closest race, with Clinton outpacing the Kentucky senator, 49%-39%.

The Clinton-Christie numbers are interesting because they present a reversal of fortunes for the New Jersey governor, who was leading Clinton by 5 points in a Quinnipiac University poll of Iowa taken in December. That's before a controversy over lane closures on the George Washington Bridge erupted in January and cast a shadow over Christie, whose numbers in several public opinion polls have plummeted.

Independent voters — who would play a key role in the 2016 presidential election in swing states such as Iowa — shifted their allegiance from Christie to Clinton, the Quinnipiac Poll shows. She now has double-digit leads among independent voters against Christie, Bush, Paul and Cruz.

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