Upvoted, but I think this is nearly impossible in practice. Also, there are certain issues (such as abortion) that otherwise perfectly rational politicians will behave irrationally about, which puts an upper limit on the effectiveness of focusing on intelligence rather than issues. If the issue that the politician is being irrational about is extremely important (like the economy) then this method can easily lead you astray.
Upvoted, but I think this is nearly impossible in practice. Also, there are certain issues (such as abortion) that otherwise perfectly rational politicians will behave irrationally about, which puts an upper limit on the effectiveness of focusing on intelligence rather than issues. If the issue that the politician is being irrational about is extremely important (like the economy) then this method can easily lead you astray.