Just one question for you. What part of "Dispensational Caucus" don't you understand?
This line from the OP is about as close as you can get, and is OK, because it does not identify the denominations.
For instance, many Christians today believe that the Church has replaced Israel in Gods plan and has inherited all of Israels blessings. Israel no longer serves any purpose in the world, they think, so when God talks about Israel in the New Testament He really means the Church. Therefore they misunderstand the Doctrine of Election, the Olivet Discourse, the Great Tribulation, and other New Testament teachings having to do with Israel.