President Bush was back in campaign mode this week, resurrecting two tried-and-true red-meat issues to rally the cadres in his dispirited Republican Party — fervent supporters of missile defense and of squeezing Fidel Castro’s Cuba. Seven years in the White House have done nothing to change his views. Campaigning now for his legacy, he is still wrong on both issues.

No one knows what will happen when Mr. Castro, who is ailing, dies. The United States is denying itself any chance to help influence Cuba’s future by sticking to the failed policies of the past. Its overriding interest should be in a peaceful transition to the democratic and economically dynamic society that Cubans have dreamed of for decades.

Mr. Bush’s blind faith in missile defense is equally disquieting. The president has already wasted billions on a small and unproven system in Alaska. Now he wants to build one in Europe to guard against a possible attack on American allies by Iran.