Clinton, Bush called for unity in moments of crisis. But Trump spews hatred

Even as the authorities were finding more pipe bombs targeting his critics on Thursday morning, Trump turned his fire at the news media

In moments of national crisis, presidents typically reach for unifying themes, as Bill Clinton did after the Oklahoma City bombing and George W. Bush did with the bullhorn on the wrecked fire truck after 9/11. President Trump on Thursday chose confrontation over conciliation.

Upset that critics linked a spate of pipe bombs targeting his adversaries to his own angry messaging, Mr. Trump abandoned the scripted call for national solidarity he issued the day before and lashed out at perceived enemies for fomenting the toxic political environment they say he has encouraged.

Even though investigators have not named a suspect, let alone a