This morning The New Republic is running with an article title Chuck Schumer Is Even Losing the Moderates—Where Democrats Stand Now, citing Mark Warner as being uncommitted. (Yesterday Warner said he would not commit to Schumer, but then went on to credit Schumer with great fund raising skills.)
This may be true, or Warner may be running a 'fence sitter" head fake like Blumenthal did a couple days ago. For now would keep Warner in the Likely Support Schumer category.
https://mastodon.online/@mastodonmigration/117595786342597608
More... Newsweek (Chuck Schumer in Peril as Voices Grow Against Senate Majority Leader) is also running with the Warner 'uncommitted' story. Still not buying it, but IF Schumer really has lost Warner, Schumer is done for. Just don't get your hopes up.