A warning to Democrats: attacking Trump's family could backfire and turn Eric Trump into a future president.

• Going after the Trump family builds sympathy and name recognition rather than damaging it.
• The comparison drawn is George W. Bush — a son who reached the White House after his father.
• Possible runs are floated for 2028, 2032, or 2036, meaning the Trump brand may outlast Trump himself.
• The risk for Democrats is that legal and political attacks hand the next Republican nominee a ready-made story.

Outlook: Expect more talk of a second-generation Trump candidacy as legal pressure on the family continues.