You asked about the PCUSA. The PCUSA is a mainline church. Speaking of our overall approach, and not just predestination, we tend to view traditional theological statements on many subjects as oversimplifying Scripture. 20th Cent credal statements from the PCUSA try to take account of the whole range of Scriptural evidence, and use Scriptural terms. E.g. you will not typically find us speaking of persons or natures when speaking of the Trinity or Incarnation.
On the question of predestination, many in the PCUSA will tell you that Scripture does not say that God predestines people to damnation. This leads to a position similar to the later Luther’s, where those who are saved attribute this fact to God’s electing grace, but no statement is made about those who are not. There’s a nice discussion of the theological alternatives in this area here:
What do Presbyterians believe about predestination (II)? ? Presbyterians Today Magazine ? Mission and Ministry ? Presbyterian Mission Agency. Many of us would say that all 4 of the Scriptural statements listed are essential, and thus that none of the doctrinal alternatives discussed is fully satisfactory.
In support of this, current PCUSA Scriptural exegesis is generally in line with that of ecumenical critical scholarship. Thus it does not always take the same view as Calvin of key passages often taken to support predestination. E.g. many Presbyterians would tell you that Paul’s references to Jacob and Esau were about God’s choice of Israel, and not the predestination of individuals to salvation and damnation. In general I would tend to see election as a call for a specific responsibility, and not as God choosing some to save and others to damn. However there are also people in the PCUSA with a more traditional Reformed understanding of predestination.
I know of two credal statements that deal with this. The first is a “declaratory statement” added to the Westminster Confession by the Northern church in 1903:
“First, with reference to Chapter III of the Confession of Faith: that concerning those who are saved in Christ, the doctrine of God’s eternal decree is held in harmony with the doctrine of his love to all mankind, his gift of his Son to be the propitiation for the sins of the whole world, and his readiness to bestow his saving grace on all who seek it; that concerning those who perish, the doctrine of God’s eternal decree is held in harmony with the doctrine that God desires not the death of any sinner, but has provided in Christ a salvation sufficient for all, adapted to all, and freely offered in the gospel to all; that men are fully responsible for their treatment of God’s gracious offer; that his decree hinders no man from accepting that offer; and that no man is condemned except on the ground of his sin.”
Is this a possible interpretation of Westminster or a modification? The traditional Reformed understanding of predestination includes “compatibilism,” the idea that predestination is consistent with individual responsibility. You can find this in Calvin, and in more detail in Jonathan Edwards “Freedom of the Will.” That explains some of the statement. Even traditional Presbyterian theology said that individuals were properly held accountable for rejecting God, and thus rejected fatalism. However in my view this statement explicitly rejects limited atonement, and probably predestination to damnation.
The second credal statement is part of the Declaration of Faith, from the Southern church in 1977.
23 “The Spirit enables people to become believers.
24 The Spirit enabled people of all races, classes, and nations
25 to accept the good news of what God had done in Christ,
26 repent of their sins,
27 and enter the community of faith.
28 We testify that today this same Holy Spirit
29 makes us able to respond in faith to the gospel
30 and leads us into the Christian community.
31 The Spirit brings us out of death into life,
32 our of separation into fellowship.
33 The Spirit makes us aware of our sinfulness and need,
34 moves us to abandon our old way of life,
35 persuades us to trust in Christ and adopt his way.
36 In all these things we are responsible for our decisions.
37 But after we have trusted and repented
38 we recognize that the Spirit enable us to hear and act.
39 It is not our faith but God's grace in Jesus Christ
40 that justifies us and reconciles us to God.
41 Yet it is only by faith that we accept God's grace
42 and live by it.”
This speaks of the need for grace, but not predestination in the traditional sense.
While there are certainly members of the PCUSA who hold TULIP, I think the view expressed in the Declaration of Faith is also common, probably more common that TULIP.