You can go to anyone and get an opinion about anything. Why do you think your opinion is worth having? What is your basis? Do you go to the deli or gas station to get an opinion about what medical treatment you should take?
Some people are proven right about politics over and over—who would get elected, which problem is a problem, what scandals are real.
The best way to evaluate an opinion is by results: Follow the money. Follow the results. We must treat results as if they were intended because, if they weren’t then they were incompetent.