Why Clyburn is flexing his political muscles in this year's primaries

After decades in Congress and years in House Democratic leadership, Majority Whip James Clyburn (D-S.C.) is flexing what he calls his “political tentacles” ahead of what is expected to be a tough election year for Democrats up and down the ballot.Tuesday marked another — mostly — successful primary night for Clyburn’s endorsed candidates, with incumbent Rep. Donald Payne Jr. fending off a progressive primary challenger in New Jersey’s 10th District and Rep. Ka