Majority Leader Mitch McConnell has set the stage for what could become a Senate rebuke of President Donald Trump’s stewardship of America’s wars.

The action is set to begin with a procedural vote Thursday afternoon on an amendment by the Kentucky Republican that would effectively oppose Trump’s plans to withdraw the bulk of U.S. troops from their long-running overseas fight against terrorism.

It is not clear how Thursday’s procedural vote will turn out. It might even be read by senators from both parties as a referendum on an internal Senate struggle over amendments — not a statement about U.S. foreign policy.

However, the fact that McConnell wants to put the Senate on record about it is telling in itself, experts say.

The amendment to a Middle East policy bill is a nonbinding sense of the Senate provision. But if it clears the procedural hurdle and is then approved, it would serve as a warning to Trump: Only bring U.S. troops home from Syria and Afghanistan slowly and carefully, if at all.