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No motive known, Biden says
President Joe Biden said he had a "short but good conversation" with former President Donald Trump on Saturday night in the wake of the shooting.
"I am sincerely grateful that he's doing well and recovering," Biden said in an address to the nation on Sunday.
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No motive is known, Biden said, and he urged the public to not make assumptions.
Biden said he's directed the head of the Secret Service to review all security measures for the Republican National Convention, which begins on Monday in Milwaukee.
"We'll share the results of that independent review with the American people," Biden said.
He added, "I've been consistent in my direction of the Secret Service to provide [Trump] with every resource, capability and protective measure necessary to ensure his continued safety."
Biden said he will speak from the Oval Office at 8 p.m. ET on Sunday.