Trump wants to project a unity message after the assassination attempt. How long will it last?

The ex-president is believed to be softening his convention speech, but top Republicans are sticking with a caustic tone

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After Donald Trump survived a shooting at a campaign rally that officials were investigating as a domestic terror attack and an attempted assassination, the former president suggested he had been changed by the near-death experience and wanted to project a message of unity.

But two days after Trump said he would try to bring the country together, it was unclear whether the message would catch on - and how long it might last.