Do you have those findings regarding Obama administration? "The Obama-era decision echoed a seven-year State Department review process with EPA input that concluded the pipeline would fail to serve national interests."
One of the central arguments by pipeline pushers is that tar sands expansion will move forward with or without Keystone XL. This has proved to be untrue. Dealing in tar sands oil is an expensive endeavor. It’s costly both to produce and to ship, particularly by rail, which would be an alternative to Keystone XL. Indeed, moving crude by rail to the Gulf costs twice as much as by pipe. For companies considering whether to invest in a long-lived tar sands project (which could last for 50 years), access to cheap pipeline capacity will play a major role in the decision to move forward or not. Without Keystone XL, the tar sands industry has canceled projects rather than shift to rail, subsequently leaving more of the earth’s dirtiest fuel in the ground where it belongs.
Canada's National Energy Board (NEB) and the US energy information agency (EIA) began publishing official data on crude by rail movements:
1) The long threatened deluge of Canadian tar sands to the Gulf Coast by rail never happened
2) Canadian crude comprises a tiny fraction of the crude moving by rail in the United States
3) Canadian crude shipped by rail has declined markedly, despite the delay and rejection of Keystone XL.
But the strongest argument that Keystone XL's rejection is going to result in less tar sands, rather than more tar sands by rail, comes from Shell. In late October, when Shell announced it was walking away from its 80,000 barrel per day (bpd) Carmen Creek tar sands project - a project that Shell had spent $2 billion to build over two years - the company attributed its decision to "a lack of infrastructure." In other words, Shell would rather walk away from $2 billion than move forward with its tar sands project using rail as a principal means of transportation. It's understating the case to say that rail isn't an attractive alternative for tar sands producers. In fact, you couldn't pay some tar sands companies $2 billion to even try it.
https://www.nrdc.org/stories/what-keystone-pipeline