C+427th of 556

Arizona State University Morrison Institute for Public Policy

Arizona State University Morrison Institute for Public Policy has no polls in our database and is rated on 6 past polls scored against results (2000–2008).

Rated polls

6

2000–2008

Average miss

8.0

All pollsters: 6.8

Lean

D+0.2

Against other polls of the same races

Picked winner

100%

Of rated polls

Every rated poll against the result

Each dot is one poll from the last three weeks of a race: how far its margin landed from the result. Above the line it overstated Democrats; below, Republicans. Bars show each cycle’s average lean.

  • Poll
  • Cycle average
R+4.8D+8.5D+5.3D+11.5D+6.4

6 rated polls; misses beyond 20 points are drawn at the edge. Source: 99chambers pollster ratings and polls databaseUpdated Oct 22, 2026, 3:55 AM ET

By type of race

Race typeRated pollsAvg. missAll pollstersLeanPicked winner
President35.54.4D+2.3100%
Governor214.05.7D+14.0100%
Senate13.35.5D+3.3100%

Avg. miss: green where it beats all pollsters’ average for that type. Source: 99chambers pollster ratings and polls databaseUpdated Oct 22, 2026, 3:55 AM ET

Among all pollsters

Average miss of every rated pollster, in points. Arizona State University Morrison Institute for Public Policy is marked; darker bars are pollsters with a smaller miss.

Source: 99chambers pollster ratings and polls databaseUpdated Oct 22, 2026, 3:55 AM ET