Alberta's tar sands oil is nasty and costly to produce. "Tar sands (oil sands) production is one of the most expensive oil sources, with break-even prices often requiring $75–$95+ per barrel for new projects to be viable."
Moreover, opposition to the Keystone pipeline doomed it. Regardless, such a project would be years in the making before providing any relief at the pump. If America is truly "energy independent" as POTUS insists then develop our own fields rather than buying from another country.
Don't forget...
"On April 20, 2020, the price of U.S. oil (West Texas Intermediate - WTI) fell to an unprecedented negative $37.63 per barrel. This meant that, for a brief time, producers were paying buyers to take oil off their hands because of a massive collapse in demand, a price war between Russia and Saudi Arabia, and a complete lack of available storage. The negative price lasted for the final hours of trading for the May 2020 WTI contract. It was a one-day anomaly. COVID-19 lockdowns halted travel, causing global demand to crash while supply remained high. Storage facilities, particularly in Cushing, Oklahoma, reached capacity, meaning holders of contracts could not take delivery."