The pipeline was actually more than half done from what I can find . When he signed the executive order on day one of his administration, the following days crude prices started going up in the market . The market responded by signaling the cheap way of transport Canadian oil to Houston for refining was halted. Perception in the future and commodities market reacted and the speculators said ,there is uncertainty in the market thus prices went up on crude..
Everything we buy is tied to oil. Farmers pay more for oil and fertilizer. Food prices go up. transportation costs for everything goes up, so you pay more . There is virtually nothing in your life not tied to oil and it's price ..so oil prices did increase inflation. Then our monetary policy is the other side. Flood the market with easy money, free money COVID give aways and voila more money in circulation means it's value is less. It's that simple.
It was 8% built, nowhere close to half done.