It's not shocking that a new poll by Young America's Foundation found that 36 percent of graduating college seniors described their professors as liberal, given the increasing amount of intolerance of free speech on campus.

But the most interesting results came when students were asked about courses they were required to take in order to graduate.

When given a variety of course options, 31 percent said “diversity” courses were required, 28 percent “race & ethnicity” courses were required and 16 percent said “women’s/feminist studies” courses were required. These results shed light on what we believed to be true: that the liberal agenda is widespread on college campuses, especially in the classrooms.

By mandating students to take these courses, students have no say in the matter. They are subject to the content of the courses and however the professors choose to instruct. With more than a third of respondents identifying their professors as liberal, we can be fairly certain these courses aren’t being taught from an objective viewpoint.

Given recent protests around commencement speakers, it should come as no big surprise that the poll found these unnecessary courses are prerequisites for graduation. Campuses are using commencement addresses as the last and final push to indoctrinate young impressionable minds.

Young America's Foundation's 22nd annual “Commencement Speakers Survey” reveals that 43 liberal speakers and only nine conservatives are scheduled to speak or have already spoken at the 2014 commencement ceremonies for the top 100 universities and colleges as listed by U.S. News and World Report. Of the nine conservative speakers, only two are prominent: former Utah Governor Jon Huntsman and Sen. Johnny Isakson, R-Ga.

However, the 43 liberal speakers include the usual suspects involved in the liberal and progressive movement with speakers such as Bill and Melinda Gates, Michael Bloomberg, Vice President Joe Biden, House Minority Leader Nancy Pelosi, Federal Reserve Chairwoman Janet Yellen, MSNBC host Chris Matthews and Al Gore.

For perspective on the overwhelming bias, News Corp., which owns Fox News, the number-one ranked cable news station, and the Wall Street Journal, the newspaper with the largest circulation in the county, has zero personalities speaking this spring.

Campuses already are hubs for liberal indoctrination, and this year we have seen far too many instances of intolerance and overt liberalism being taught in our nation’s schools. Now, college administrations are also doing all they can to make sure students never hear from conservative speakers.

Ashley Pratte is the spokeswoman for Young America's Foundation. Thinking of submitting an op-ed to the Washington Examiner? Be sure to read our guidelines on submissions for editorials, available at this link.