I thought I had done an announcement for this a while ago (perhaps lost in the purge). Regardless, here's how to embed tweets:

1. Copy the URL of the tweet you wish to share. If you are on a desktop, select the arrow to the top right of a tweet from your feed and click on "Copy link to Tweet", or if the tweet is already open, simply copy the URL string in your browser.

2. Paste that URL as a LINK, and then paste the tweet's ID number (the string of numbers at the end) between TWEET brackets, like the below:

HTML Code:
[TWEET]1088084703184338945[/TWEET]
Link: https://twitter.com/nytimes/status/1088084703184338945
This will allow the tweet itself to embed into the post, and allow mobile users, who cannot see the embedded tweet, a link to view it via mobile.

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The end result looks like this: