Complex sentence: The last several years of his presidency were mired in conflict, with a large student movement feeling that his fundraising priorities directly conflicted with the interests and needs of the student body, and the university's mission of education.
Split into simpler sentences: The last several years of his presidency were contentious, with opposition by many in the student body. Some students believed Bennet's fundraising priorities conflicted with the interests and needs of the student body, and the university's mission of education.