Donald Trump Has Made Some Big Changes To His Campaign Staff ... Again

With less than three months to go until election day, Donald Trump is reportedly shaking up his campaign ... again.

Trump has tapped Breitbart News executive chairman Stephen Bannon as his new campaign chief executive.

And pollster Kellyanne Conway was reportedly promoted to campaign manager.

Conway confirmed the overhaul to The New York Times Wednesday morning, simply saying, "It's an expansion at a busy time in the final stretch of the campaign."

She also said Paul Manafort, the Trump campaign's chairman, will keep his title.

So, why the big changes for Trump so late in the game?

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The shakeup follows weeks of negative headline after negative headline for the Republican presidential nominee.

And he has fallen behind rival Hillary Clinton in polls both nationally and in key battleground states.

Trump said in an interview with The Wall Street Journal Tuesday night, "I want to win. That’s why I'm bringing on fantastic people who know how to win and love to win."

The move comes nearly two months after Trump fired Corey Lewandowski as his campaign manager. Senior advisers reportedly didn't agree with Lewandowski's aggressive style.