Warren takes the lead in Iowa

Elizabeth Warren has surged in Iowa, narrowly overtaking Joe Biden and distancing herself from fellow progressive Bernie Sanders, the latest Des Moines Register/CNN/Mediacom Iowa Poll shows.

Said pollster Ann Selzer: “This is the first major shakeup. It’s the first time we’ve had someone other than Joe Biden at the top of the leader board.”

Here are the results with the changes from the last DMR poll in June:

Warren 22 (+7)

Biden 20 (-4)

Sanders 11 (-5)

Buttigieg 9 (-5)

Harris 6 (-1)

Klobuchar 3 (+1)

Booker 3 (+2)

O’Rourke 2 (+0)

Gabbard 2 (+1)

Steyer 2 (+2)

Yang 2 (+1)

I think Biden dropping by 4 is notable, but so is Bernie dropping by 5 points. That explains why his campaign has sent packing two of his Iowa campaign staffers this past week.

More from CNN: ” Warren’s improved standing overall in the Iowa poll comes on the heels of a stronger showing in recent national polls and is bolstered by an increasing positive favorability rating (75% have a favorable view, the best in the field, and she is one of only four candidates who have improved their net favorability since the June CNN/DMR poll), as well as a growing percentage of likely caucusgoers who say she is either their first choice, second choice or someone they are actively considering. All told, 71% are at least considering Warren’s candidacy, ahead of the next best candidate on that score by 11 points (Biden at 60%). Her supporters are also more enthusiastic than those behind Biden (32% of her backers are extremely enthusiastic vs. 22% for the former vice president).

The Massachusetts senator appears to be gaining ground primarily at the expense of Sanders. She holds the support of 32% of those who say they caucused for Sanders in 2016 (Sanders himself stands at 25% among that group), stands at 48% among those who consider themselves “very liberal,” and for the first time in CNN/DMR polling on the race, has edged ahead of Sanders among those under age 35 (27% back Warren, 22% Sanders). “