An investigation is underway into the Delta plane that crash-landed Monday in Toronto. What caused it remains to be seen, but here's what we know so far.

White House press secretary Karoline Leavitt fact-checked Sen. Chuck Schumer's, D-N.Y., claim that President Trump's at fault for airliner that crashed in Toronto on Monday.

Investigators will consider the weather conditions, as well as the possibility of human error or an aircraft malfunction.