A digital ad by Republican Senate candidate Marsha Blackburn was blocked by Twitter on Monday after the company claimed it contained an "inflammatory statement" related to abortion.

Blackburn used her two-minute ad to say she "fought Planned Parenthood, and we stopped the sale of baby body parts, thank God."

An employee of Twitter told Blackburn's team the ad would be blocked from appearing on the popular social media site unless Blackburn's claim that she "stopped the sale of baby body parts" while serving in Congress is edited out. Boasting of shutting down that aspect of Planned Parenthood's operation constituted "an inflammatory statement that is likely to evoke a strong negative reaction," Twitter told Blackburn's campaign.

The campaign responded to Twitter's decision on Monday afternoon by urging supporters of Blackburn to share the ad elsewhere on social media and join her "in standing up to Silicon Valley."

An aide to Blackburn slammed the move by Twitter as an affront to free speech.

"Since when do they get to decide what political content is appropriate?" the aide told the Washington Examiner. "We hope to send them a message on how inappropriate this is and will ensure the pro-life community is aware of their actions."

Blackburn also said in her ad that she is "100 percent pro-life."

Blackburn led a special congressional investigation into Planned Parenthood in 2015 after a pro-life group released several undercover videos showing officials within the organization discussing the use of aborted fetal tissue for medical research.

She announced last week that she would run to replace GOP Sen. Bob Corker, who plans to retire from the upper chamber at the end of his term next fall. Blackburn positioned herself to the right of Corker in the ad announcing her Senate bid and criticized her colleagues for failing to dismantle Obamacare and "act[ing] like Democrats – or worse."

"I'm a hardcore, card-carrying Tennessee conservative. I'm politically incorrect, and proud of it," Blackburn said in the ad.

Twitter has come under fire on numerous occasions for stifling certain opinions on its platform. Most notably, the social media giant indefinitely suspended alt-right provocateur Milo Yiannopoulous last February for bad behavior and harassment.