It is wonderful that the Lord loves us so much that he has shortened the time of the tribulation, so that His election can be saved.Unless you meant Obama I think that was a typo.
I take it you meant to say "elect?"
That said I disagree in that we have been in the tribulation since before the Middle Ages. What you are using interchangeably is perhaps the Great Tribulation. And that subtle difference has led to many a confused position. But then some still don't get that the king of the north, king of the south business written by Daniel is now mostly history and involves such well known figures as Cleopatra.
The one thing that perplexes me most about the rapture doctrines is that it is equally possible that there will be a pre-Great Tribulation taking away of the saints as there is for post. And it makes sense to me because it says the dead in Christ will rise first then we who are alive and remain will be caught up. It well could be at the battle of Megiddo. But then the is this archetype of Noah and the taking away to safety. Plus the issue of the return of Christ mentioned at two distinctly mountains. So despite all the pretty graphic mosaics on this period by various factions I am not firmly committed to any one projection.
Also consider that even given the marketplace today how in the world could many, if any, Christians survive without the means to buy, sell, or trade? How could you even just pay your property taxes and live off of the land in abject poverty for 3 - 7 years? Perhaps I'm just thinking in Western terms but for me this is one of the few true mysteries of unfilled prophetic scripture, especially since the elect are supposed to recognize the times and seasons and prepare. I find it difficult to believe that anyone could be alive who didn't take the mark of the Beast to be caught up to meet Christ at the end of a 7 year Satanic reign as some dogmatically contend is what will happen. But I can't rule it out entirely either.