canvass.Republicans have relied more on outside groups for canvassing.

Turnout Is a Focus in a Closely Divided Race

Democrats in battleground states have built a tightly structured get-out-the-vote operation, while Republicans have relied more on outside groups for canvassing.

If you’re just looking, great art doesn’t cost a dime. Four art critics of The New York Times have canvassed the prime gallery neighborhoods to offer a field report.

canvass

(kăn'vəs)
v., -vassed, -vass·ing, -vass·es. v.tr.

1. To examine carefully or discuss thoroughly; scrutinize: “The evidence had been repeatedly canvassed in American courts” (Anthony Lewis).
2. 1. To go through (a region) or go to (persons) to solicit votes or orders.
   2. To conduct a survey of (public opinion); poll.

v.intr.

1. To make a thorough examination or conduct a detailed discussion.
2. To solicit voters, orders, or opinions.

n.

1. An examination or discussion.
2. A solicitation of votes or orders.
3. A survey of public opinion.

[From obsolete canvass, to toss in a canvas sheet as punishment, from CANVAS.]

canvasser can'vass·er n.