Purdue University President Mitch Daniels has apologized for giving a speech this week at the fund-raiser for a conservative think tank in Minnesota. Daniels was the Republican governor of Indiana before becoming Purdue's president and he vowed to avoid partisan political activity in his new job. So some on campus were bothered by the appearance  and an editorial in The Journal and Courier  said that his Purdue role "will continue to be questioned and pulled down whenever he steps, however innocently, onto political turf." In a letter to the editor  of the newspaper, Daniels stressed that the speech itself was not partisan. But he said that the editorial was correct, and that he should not have accepted the invitation, even if he didn't break any university rules in doing so. "[F]acts and rules aren’t the determining factor here. Perceptions, and understandable misperceptions, matter even more," he wrote. On reflection, this invitation should have fallen on that side of the line. I accept the validity of the criticism and will try to avoid similar judgment errors in the future."