....You might choose others, but here's my list:
1.
A 30% national sales tax is a workable substitute for all income and payroll taxes in the United States.
2.
Global warming is not primarily caused by human activity. In fact, global warming might not even exist.
3.
Intelligent design is a viable scientific theory that ought to be taught in biology classes.
4.
Even with marginal tax rates at current levels, reducing taxes will increase revenues.
5.
Saddam Hussein was behind 9/11.
I would like to compile a similar list for liberals/Democrats. Items should be (a) reasonably consequential; (b) held by a nontrivial cross-section of actual politicians, think-tankers, and pundits, not just by a small lunatic fringe; and (c) not mere differences of opinion ("abortion is murder," "preventive war is bad"), but things that are demonstrably false. Leave your nominations in comments.
