They're both myths. Clinton won largely because he won over the moderates (and they've been voting for Democrats ever since.) A is a myth because exit polls showed Perot taking votes about equally from Bush and Clinton. B is a myth because Bush's job approval was low enough that just about any decent Democrat could have beaten him.
Lee Atwater, who had helped run Bush's very negative 1988 campaign, was dead.
This is another myth. Bush's 1988 campaign was no more negative than the Dukakis campaign, and Bush's attacks were far from the only reason he won.
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