By Debbie Gregory.

The first time a U.S. president flew in an airplane, it was a Boeing airplane. That was in January, 1943, when President Franklin D. Roosevelt flew to Casablanca aboard a Boeing model 314 Clipper.

Boeing airplanes have transported U.S. presidents, from Roosevelt to Trump, around the world. The U.S. Air Force wants to continue the Boeing tradition with the 747-8, which will replace the two 747-200s that serve as the presidential Air Force One fleet. That is, if they can negotiate a deal with Boeing.

President Trump and Boeing CEO Dennis Muilenburg are working together to try to re-kick-start the stalled multibillion-dollar deal for two new Air Force One airplanes which will fly future presidents for decades to come.

The two planes were initially built for a Russian airline that has since gone bankrupt. Air Force leaders and Boeing have been negotiating the terms of the modifications since last summer, but keep getting stuck at the type of contract that will be signed.

The Air Force wants to sign a fixed-price deal that would require Boeing to buy the planes at an agreed price. Boeing would then be responsible to absorb any cost overruns.

The project made headlines when before taking office, then president-elect Trump attacked Boeing for the $4 billion price tag, calling the costs “out of control” and demanded the order be canceled.  But Trump changed his tune last year after visiting a Boeing 787 Dreamliner factory in South Carolina. His parting words were: “God bless Boeing.”

As one of the largest defense contractors in the world, Boeing does a lot of business with the U.S. government.

The newer airplanes are larger than the current 747-200 airliners that were put into presidential service in the early 1990s.

The new planes will need to be modified with conference rooms, a presidential office, and secure military communications