Why would Washington try to get oil from Venezuela when its domestic oil industry produces all the oil the US needs (and if production were to decrease, the US economy could easily make up the shortfall by buying oil from Canada)?
US has a long history of overthrowing both democracies and dictators to allow their companies to extract resources lining the pockets of already rich industrialists.
The US intentionally uses only a fraction of its oil reserves so it can control the price, and will still have plenty when others run out.
Check out the capacity of the Alaska pipeline, and how much goes down it each day. Literally the least possible to keep it well maintained.
Domestic crude oil is mostly not compatible with US refineries, so it mostly gets exported. The US imports heavy crude, like that produced by Venezuela, for our domestic use.
Why would you buy oil from Canada when you can take oil from Venezuela?
To hinder China, so sell it themselves, to prevent competition
Don’t forget I mentioned other resources too. Venezuela has more than oil.
It's not about needing the oil to use, it's about profit for American oil companies. Resource extraction from foreign countries at gunpoint is a major basis of the US economy.