Story highlights Heller is up for re-election in 2018

"He's now with Nancy Pelsoi," the ad states

(CNN) The pro-Trump group America First Policies pulled critical television advertisements of a fellow Republican after facing public and private backlash on Tuesday evening.

The political group ran anti-Heller ads for fewer than 12 hours before they were pulled from the airwaves in Nevada.

Erin Montgomery, a spokesperson for the group, said, "America First Policies is pleased to learn that Senator Dean Heller has decided to come back to the table to negotiate with his colleagues on the Senate bill. We have pulled the ads we released earlier today in Nevada, and we remain hopeful that Senator Heller and his colleagues can agree on what the American people already know: that repealing and replacing Obamacare must happen for America to move forward and be great again."

The advertisements -- and internal fighting among the Republican party -- raised eyebrows, especially as the group continued to stand by their decision to air the ads through midday Tuesday.

McConnell called White House chief of staff Reince Priebus this weekend and expressed his displeasure about America First going after Heller, a source tells CNN.

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