Castillo claims schools have improved during her term of office, despite severe budget constraints which predate her election to the post, and test scores do show modest increases since she took office, and stronger gains in closing the so-called "achievement gap." She states that her biggest disappointment in office was not being able to persuade lawmakers to put more money into education. Perhaps in evidence of this frustration, and despite the fact that they are members of the same party, she has not shied away from criticizing Governor Ted Kulongoski over what she has seen as inadequate funding for education in his proposed budgets.