Rep. Ilhan Omar Ilhan OmarOmar fires back at Trump over rally remarks: 'This is my country' Trump attacks Omar for criticizing US: 'How did you do where you came from?' Democrats scramble on COVID-19 relief amid division, Trump surprise MORE (D-Minn.) on Sunday fired back at conservative commentator Meghan McCain Meghan Marguerite McCainKasich to Meghan McCain: Concern over abortion 'dwarfed' by need to beat Trump Meghan McCain says she believes report Trump called fallen soldiers 'losers' Meghan McCain hits Ivanka Trump's defense of president's Twitter: It's not a 'communication style,' it's 'cruelty' MORE after "The View" co-host brought up comments made by the freshman congresswoman in a discussion on a deadly shooting at a California synagogue.

Omar tweeted “bless her heart” in a post linking to a clip of McCain suggesting the Omar’s rhetoric that some have classified as anti-Semitic needs to be addressed following the shooting.

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The Saturday shooting at the Chabad of Poway synagogue left one dead and the rabbi injured in the most recent attack at a place of worship.

McCain appeared on ABC's “This Week” on Sunday to discuss the attack.

“I do think when we are having conversations about anti-Semitism we should be looking at the most extreme on both sides, and I would bring up Congresswoman Ilhan Omar and some of her comments that got so much attention,” McCain said Sunday, bringing up Omar unprompted.

McCain added that she thought House Speaker Nancy Pelosi Nancy PelosiHoyer: House should vote on COVID-19 aid — with or without a bipartisan deal Ruth Bader Ginsburg lies in repose at Supreme Court McCarthy threatens motion to oust Pelosi if she moves forward with impeachment MORE (D-Calif.) “wasn’t hard enough in her response to [Omar] trafficking in anti-Semitic language.”

She then brought up two tweets by Omar that many condemned as anti-Semitic. Omar has since apologized for the comments.

“When you are talking about rhetoric and you want to talk about President Trump Donald John TrumpBiden on Trump's refusal to commit to peaceful transfer of power: 'What country are we in?' Romney: 'Unthinkable and unacceptable' to not commit to peaceful transition of power Two Louisville police officers shot amid Breonna Taylor grand jury protests MORE, and by the way, I agree he needs to have his feet held to the fire as well, but we are talking about it on both sides of the aisle as well,” McCain concluded.

McCain and Omar have feuded in the past, most recently over what Omar classified as McCain's "faux outrage" over her comments that were perceived as anti-Semitic.