They passed a Senate Amendment SA 1388 to a House Veterans bill called the RELIEVE Act. HB 815
This Wall of Text explains the process:
Consideration of Senate Amendments by the House
When the Senate passes a House bill with one or more amendments, it is messaged back to the
House, where it is normally held at the Speaker’s table. The bill may be referred to a committee at
the Speaker’s discretion, but this would be likely only if the Senate has included substantial
nongermane matters in its amendment that would fall in the jurisdiction of a committee different
from the one that considered the original matter in the bill.
One limitation on the use of amendments between the houses is that, before reaching the stage of
disagreement, Senate amendments generally are not privileged in the House. This means a
Member cannot interrupt the regular order of business to move that the House consider a measure
with a Senate amendment if the subject of the amendment would normally need to be considered
in Committee of the Whole (generally matters related to appropriations, or authorizations,
appropriations, or revenues). The only motion that can be made on the House floor at this stage is
a motion to go to conference with the Senate if made at the direction of the committee(s) with
jurisdiction over the subject of the measure.
The House, however, may choose to consider Senate amendments by one of several methods that
overcome this limitation. The House floor manager may ask unanimous consent to concur in the
Senate amendments or concur with an amendment. Either case would normally only occur when
the provisions in question are noncontroversial since objection by any Member would cause the
request to fail. (This procedure does not allow for any debate, although another Member will
often reserve the right to object, allowing the floor manager to clarify the purpose and content of
the request.) As an alternative, or if an objection is made to a unanimous consent request, the
House may also consider Senate amendments either by a motion to suspend the rules (when such
a motion is in order) or under the terms of a special rule.

My thought is, it's all BS and nothing will become of it.
Still Kennedy should have voted Nay.