This one exposed by The Wall Street Journal Editorial Board; it centers on immigration.

First move:

When President Biden first proposed in April to end Title 42, several Democrats joined their GOP peers in backing a bill to keep it in place.

Second move:

Republican Senator James Lankford [OK] proposed an amendment [to the just Senate-passed Build Reduced Back bill] to extend Title 42….

All of the Senate Progressive-Democrats voted Lankford’s bill down in a strictly party-line vote.

Third move:

Senator Tester [Jon, D, MT] proposed another. His version also pledged to restore the border-expulsion policy, but unlike Senator Lankford’s it lacked a funding provision. This time Mr Tester backed the amendment, joined by Senators Sinema, Kelly, and Hassan, along with Catherine Cortez Masto and Raphael Warnock.

Fourth move:

[Senate] Majority Whip Dick Durbin [D, IL] challenged the amendment on procedural grounds, saying its lack of funding violated Senate budget reconciliation rules. The amendment fell short of the 60 votes it needed to pass and was left out of the bill’s final version.

And with that dance, Progressive-Democrats can proclaim their support for immigration controls while simultaneously and deliberately doing nothing at all about immigration.

All very carefully choreographed by Party.