Detailed Analysis:

• Claim: President Trump and first lady Melania Trump hosted a Halloween event at the White House.
• Verification Source #1: Confirms that President Donald Trump and first lady Melania Trump hosted the annual Halloween parade and handed out candy.
• Verification Source #2: States that President Donald J. Trump and First Lady Melania Trump hosted trick-or-treaters every year at the White House.
• Verification Source #3: Confirms that President Trump and first lady Melania Trump hosted trick-or-treaters in a Halloween celebration at the White House.
• Verification Source #5: Confirms that the Trumps hosted trick-or-treaters for Halloween at the White House.
• Assessment: Supported by multiple sources.
• Claim: The event included star athletes, princesses, dinosaurs and at least one Trump impersonator.
• Verification Source #3: Source does not explicitly mention the specific costumes, but does confirm the event took place.
• Verification Source #5: Source does not explicitly mention the specific costumes, but does confirm the event took place.
• Assessment: While not explicitly confirmed by all sources, the claim is plausible given the nature of Halloween events and is not contradicted by any source. The original article is a photo gallery, so this claim is likely based on visual evidence.