The man arrested for Tuesday's attack has posted online in support of the Republican president. Omar, a refugee from Somalia, has long been a fixture of Trump's anti-immigrant rhetoric. The attack on Omar was a reminder of the country's threatening political climate, which has led some lawmakers to limit public events or not seek reelection. Officers immediately tackled and arrested Kazmierczak. The congressman described Omar as “tough as nails” and said Trump should curb his rhetoric about her.