But it’s possible Clinton’s big lead was never as big as Democrats thought. Yes, some of the margins looked enormous:

* A CNN poll in March showed Clinton up by 15 points over Republican Jeb Bush, 13 points over Marco Rubio, 11 points over Rand Paul, and 15 points over Scott Walker.

* An ABC News poll in March showed Clinton up by 15 points over Rubio, 14 points over Walker, and 13 points over Bush.

* A CNN poll in April showed Clinton up by 22 points over Walker, 19 points over Paul, 14 points over Rubio, and 17 points over Bush.