Why conservative speakers are protested on college campuses

Simple answer: They keep touting arguments that have long been debunked. Take tax cuts for example: They keep insisting that tax cuts will pay for themselves despite the fact such a policy eventually cost' George H. W. Bush his second term when he had no choice but to raise taxes again.

Check these sources if you will:

NO, TAX CUTS ARE NOT PAYING FOR THEMSELVES

YES, TAX CUTS ARE PAYING FOR THEMSELVES

Committee for a Responsible Federal Budget: Do Tax Cuts Pay For Themselves?  The Fiscal Times: Are the Tax Cuts Paying for Themselves?  New York Times: No, Trump’s Tax Cut Isn’t Paying for Itself (at Least Not Yet)  FactCheck.org: CBO Didn’t Say Tax Cuts Were ‘Virtually Paid For’  The Washington Post: History lesson: Do big tax cuts pay for themselves?  Politifact: Do tax cuts pay for themselves? Evidence is thin / Trump economic chief Larry Kudlow wrong about CBO report on tax cuts

Investor's Business Daily: It's Official: Trump Tax Cuts Are Boosting Growth And Mostly Paying For Themselves.  The Wall Street Journal: The Corporate Tax Cut Is Paying for Itself  Forbes: The Tax Cuts Will Pay For Themselves If We Wait Long Enough YouTube: Mnuchin - Trump's tax cuts will pay for themselves. American Thinker: Trump's tax cuts already paying for themselves Town Hall: Dems Wrong Again: Republican Tax Cuts Are Paying for Themselves

Then there's Market Watch: Opinion: The unanswerable question: Do tax cuts pay for themselves?

Tax Cuts Stimulating the Economy

Will cutting taxes for the wealthy stimulate the economy? The answer is an unequivocal no.

• Slate (07/16/2014): Gov. Sam Brownback Will Keep Floundering in Kansas Because Reagan 
• NBC News (10/22/2017):The GOP Tried Trump-Style Tax Cuts in Kansas. What a Mess. 
• Forbes (06/07/2014): The Great Kansas Tax Cut Experiment Crashes And Burns 
• NPR (09/30/2017): Trump's Tax Plan Has Echoes Of The Kansas Tax Cut Experiment 
• CNBC (09/27/2017): What Trump and the GOP need to learn from Kansas' tax cut disaster 
• The New York Times (10/10/2017): Kansas Tried a Tax Plan Similar to Trump’s. It Failed.
• Los Angeles Times (06/22/2017): Op-Ed Kansas' tax cuts are a spectacular failure. Meanwhile, in California ... 
• Business Insider (06/14/2017): Kansas’ experiment with tax cutting failed spectacularly — on its own terms 
• Chicago Tribune (06/20/2017): Epic fail of Kansas' tax-cut plan offers a lesson for us all. 
• The Washington Times (07/23/2017): Kansas’ failed tax experiment offers economic lessons for Republicans at national level. 
• The Kansas City Star (10/11/2017): U.S. Rep. Lynn Jenkins turns to Twitter to call out Kansas GOP lawmaker over tax cuts
• The Kansas City Star  (06/07/2017): Kansas tax ‘experiment’ offers lessons to the nation, analysts say 
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