Yes, not to the nations, but Satan can and does do so to unbelievers today, until God chooses to reveal to them the light of the gospel, which results in them being saved. Satan can not prevent God from saving anyone.
But until they are saved, their minds remain blinded to the gospel light.
The Light of Christ’s Gospel
1 Therefore, since we have this ministry, as we have received mercy, we do not lose heart. 2 But we have renounced the hidden things of shame, not walking in craftiness nor [
a]handling the word of God deceitfully, but by manifestation of the truth commending ourselves to every man’s conscience in the sight of God. 3
But even if our gospel is veiled, it is veiled to those who are perishing, 4 whose minds the god of this age has blinded, who do not believe, lest the light of the gospel of the glory of Christ, who is the image of God, should shine on them. 5 For we do not preach ourselves, but Christ Jesus the Lord, and ourselves your bondservants for Jesus’ sake.
6 For it is the God who commanded light to shine out of darkness, who has shone in our hearts to
give the light of the knowledge of the glory of God in the face of Jesus Christ.
Compare and contrast.
v4 are the unsaved, unbelieving who are perishing. Gospel is veiled, minds blinded by Satan. Much of the world for all of NT history fits here.
v6 are the saved, God has shown His light in their hearts.
And this also tells us God saves those He chose. Just like Ephesians 1 says