Regarding the May 14 front-page article “Jeb Bush stumbles on Iraq, and conservatives pounce”:

What Jeb Bush would do knowing what we now know tells us nothing about how he would govern. No president has the benefit of hindsight. The core of the job is to make good decisions with imperfect information. If Mr. Bush would do nothing different with the information his brother had, he would lead us down the same errant path.

Ilya Shlyakhter, Cambridge, Mass.