Once the rapture of the Church happens, the US will join the godless forces attacking Israel. There will be no Christians left except for those coming to salvation in Israel. Those left behind will be turned over to the great delusion.
Seems to me, I don't remember any redemption after rapture. Once rapture happens, that's it. Done. And make no mistake, the trials and tribulations before the rapture will make for some converts, but by and large, at that point, it will be few.