Justin Lecea — a self-described “Bernie Democrat” running to unseat Texas Democratic Congressman Joaquin Castro — is defending a tweet in which he wished former President Barack Obama would get cancer. Over the weekend, Lecea retweeted an Obama tweet reminding people about the deadline for enrollment in Obamacare, and added his uncharitable message. “I just want you to think about all the people who have and will die because Obamacare is pointless and your entire presidency was a waste,” he wrote, and added “If god was just you would get the most malignant cancer imaginable.”