It's better to say "let me think about it" than to say no. It's even better to say yes to some unimportant things while playing hardball on important issues. For example, the US does continue to provide funding to Ukraine that was approved by Congress in December last year: https://www.defensenews.com/global/europe/2026/09/25/trump-a... and I suspect there'll be another aid package after the midterms.

Also, from the article: "Canadian officials are still participating in the conference," "Despite withdrawing its branding as an official supporter, the EU continues to fund the conference."