The answer, according to a new study, is making them feel better about themselves. As I report:
...the contested issues under examination were whether the 2007 troop “Surge” decreased insurgent attacks in Iraq (it did), whether the U.S. economy added jobs during 2010 under President Obama (it did), and whether global average temperatures have risen since 1940 (they have). Those who opposed the Iraq war and supported troop withdrawals were disinclined to credit George W. Bush’s surge with having worked. Those who oppose President Obama are disinclined to credit him on the economy, or to generally believe in global warming—especially that it is human caused. Nyhan and Reifler once again confronted partisans with information on these subjects that (presumably) contradicted their beliefs—but there was a twist. This time, the contradictory information was sometimes presented in the form of a convincing graph, showing a clear trend (in attacks, jobs, or temperatures). ...
