Former Secretary of State Hillary Clinton told Kara Swisher on the "Pivot" podcast that Republicans are deploying what she called a "very effective" anti-communist attack against the Democratic Party's rising class of far-left candidates, who are increasingly defeating establishment Democrats in primary races.Clinton told Swisher that Abdul El-Sayed's narrow victory in Michigan's Democratic Senate primary is a wake-up call for the party. She said El-Sayed must unite the party by winning over supporters of moderate Rep. Haley Stevens and reassuring independent voters ahead of his general election contest against Republican Mike Rogers."The real fight will be, how do we make sure that people who voted for Haley feel comfortable voting for Abdul El-Sayed, and how do we get independents to feel comfortable," Clinton said."It's not just about Michigan, but the Republican messaging is 'communist, socialist.' It's going to be a very effective attack," she warned, adding, "People on the left have to be prepared to answer that and be effective in answering that."💥NEW: Hillary Clinton: "It's not just about Michigan — but the Republican messaging is: 'communist, socialist.' It's gonna be a VERY effective attack." pic.twitter.com/PS6ObKoZli