WATERLOO, Ia. — Massachusetts Sen. Elizabeth Warren said she has no plans to beat up on other Democrats as she runs for president.

Following an event at Waterloo's Central Middle School, a Democrat in the crowd told Warren he was worried this year's large field of contenders would lead to intra-party attacks that lose sight of the party's ultimate goal of unseating Republican President Donald Trump.

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He asked the senator if she would pledge to do her part to avoid a "circular firing squad."

"You bet," Warren responded. "I'm not here to attack Democrats. I'm here to try to get our country back on track. I'm going to stay on the issues — that’s what matters to me."

In Iowa, Warren underscored her campaign theme that the United States must seek large, structural transformation in government in lieu of incremental changes. The senator wrapped up a six-stop swing through northeast Iowa on Saturday afternoon.

"This really is our moment and the need for us to get this right couldn't be more urgent," Warren said. "And let me also say I'm going to support our Democratic nominee all the way."