(CNN) President Donald Trump's allies are increasingly embracing his argument that Democrats have become a "mob" heading into the final stretch of the midterm election, echoing his incendiary language in the hopes of motivating Republican voters to head to the polls in just three weeks.

America First Policies, the non-profit arm of the political action committee aligned with Trump, will launch a multi-state ad buy Tuesday aimed at turning out voters across 15 states with competitive Senate or congressional races. The $1.2 million digital campaign's first spot, titled "Division by Intimidation," will feature Democrats and protesters engaging in the kind of tactics Trump has sought to highlight during his most recent campaign stops.

"There's been a lot of talk about whether a left-wing mob exists in America. This powerful ad will leave no doubt that it does," said Erin Montgomery, the group's spokesperson.

The mob-themed turnout effort comes as Trump ramps up his rhetoric about Democratic tactics in the wake of Justice Brett Kavanaugh's bitter confirmation battle. Republicans across the country have sought to capitalize on the surge in enthusiasm among GOP voters generated by Kavanaugh's controversial installment on the high court earlier this month.

Trump allies argue the divisive rhetoric could help Republicans motivate potential voters across the GOP spectrum and not just members of Trump's dedicated base. "These kinds of messages are going to have just as much impact in the middle as they are on the right," said Marc Lotter, a former spokesman for Vice President Mike Pence and a frequent Trump defender on cable news.

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