Nearly half of Americans say they don’t consider themselves a part of either major political party, the highest level of partisan independence measured by CNN polling in more than a decade.

Democrats are in a historic position headed toward midterm elections, CNN chief data analyst Harry Enten argues, given enthusiasm, the economy and polling results.

"Democrats are ahead, but don't count your chickens just quite yet," CNN's chief data analyst told anchor John Berman.

CNN’s Kate Bolduan grilled Democratic Congressional Campaign Committee Chair Suzan DelBene (D-WA) about the intraparty turmoil over the DCCC’s interference in primaries on Friday. “Let me ask you, ...