Former President Donald Trump’s daughter-in-law Lara Trump, the newly-minted co-chair of the Republican National Committee, was ridiculed on social media on Sunday after threatening to prosecute “illegal citizens.” Lara Trump, who once vowed that the RNC will “physically handle the ballots” in the upcoming election, was interviewed on Fox News. “If you’re a person who is attempting to cheat in our elections or you’re an illegal citizen attempting to illegally vote in our elections, we will find you, track you down and prosecute you to the full extent of the law. We’re watching everything, we’r…