By Daniel Dale, CNN(CNN) — President Donald Trump did it after the 2021 attack on the US Capitol. And he did it again on Tuesday after an attack on another Democrat, Rep. Ilhan Omar of Minnesota. After cases of violence targeted at his political opponents, Trump has shown a penchant to respond with conspiracy theories baselessly suggesting the targets of that violence are at fault. She probably had herself sprayed, knowing her.”Such false-flag conspiracy theories were already spreading Tuesday night in pro-Trump circles on social media. The man who was arrested, Anthony Kazmierczak, had previously shared anti-Omar content and photos of Trump on social media.