GOP race divides evangelical voters in Iowa

Aired: 2/1/2016 | 0:07:17 | Clip
On Iowa caucus night, only a fraction of voters typically participate. But among Republicans who attend, half are expected to be evangelical Christians, a group that helped propel Rick Santorum and Mike Huckabee to wins in the past. This cycle, there may be more division over whether to back mainstream Republicans or antiestablishment candidates. Judy Woodruff reports.