The author, a Canadian, declined an invitation to a gathering in the US due to concerns about the country's current political climate and potential risks at the border. The author cites the US leader's threats to Canada's sovereignty and disrespect for nationhood as reasons for their decision. The author also mentions the risk of negative consequences if they are asked to disclose their social media output at the border. The decision is a personal choice based on principle and a desire to prioritize their family's well-being.