This survey was conducted from December 4-6, 2019 and included a pool of 500 registered Oklahoma voters. These survey results were weighted based on age, gender, party affiliation, and level of education. This survey has a margin of error of 4.38% at a 95% confidence interval. The poll surveyed both cell phones and landlines and used a combination of live callers and an online panel of registered voters.
https://amberintegrated.com/blog/2019/12/12/poll-trump-support-remains-strong-in-oklahoma-and-majority-oppose-impeachment
