How do you pitch and approve messaging with internal senior stakeholders? What are the best tactics you've previously used?

When pitching new messaging with senior stakeholders I start with a "soft launch". Usually, I keep it light and focus on asking for feedback rather than saying it's final. This happens in one-off Slack messages or in 1:1 conversations.

Then I put together a formal document (typically a slide deck) that includes the data and research behind the messaging, relevant information about how I reached the final message, and the final messaging strategy. At this point, I'm still open to feedback but try to move towards a final strategy rather than throwing out the work already done.