Looks like Joe Biden can sling a little mud of his own. Speaking at private South Carolina fundraiser Saturday, the presidential candidate was asked if he planned to retaliate against President Trump's insults. "There's so many nicknames I’m inclined to give this guy," said Biden to general laughter, per Politico. "You can just start with clown." Trump, who famously insulted other candidates in the 2016 election, has already dubbed Biden "Sleepy Joe." But Biden, 76, said Trump wants to steer him away from serious issues. "What I'm not going to do is get into what he wants me to do," said the Democrat, per CBS News. "He wants this to be a mud wrestling match." (More Election 2020 stories.)