PHOENIX (3TV/CBS 5) - A group of anti-Donald Trump conservatives released a savage attack ad targeting Arizona Sen. Martha McSally this week, calling her a "Trump hack" who will be defeated this year.
[WATCH: New political ad slams Sen McSally]
The conservative Lincoln Project, which includes a group of vocal anti-Trump critics, produced the commercial that criticizes McSally's tight relationship with the president. Notable right-leaning politicos, like George Conway, the husband of Trump spokeswoman Kellyanne Conway, started the organization with the goal of defeating Trump in November.
But the attack on McSally, according to one Arizona Republican, runs the risk of backfiring.
"I don't think it's going to be as honest as effective as they think," said Marcus Dell'Artino with First Strategic. "Those visceral type of ads aren't the ads that will be moving people this election cycle."
McSally is expected to face Democratic challenger Mark Kelly in the general election, which is expected to be one of the most expensive and closely watched Senate races in the country.