Is the median voter always the voter with median income?

No, the median voter is not always the voter with median income. The median voter theorem suggests that in a majority-rule voting system, the preferences of the median voter will dominate, but this median voter is determined by political preferences and positions rather than income alone. Factors such as ideology, age, education, and other demographic variables can influence who the median voter is, meaning that the income distribution does not directly correlate with political preferences.