Has nothing to do with Biden. Has to do with Covid declining as a result of Trump's vaccines, momentum building from the lockdowns stopping in red states (no thanks to blue states),.
Then you have the Federal Reserve remaining dovish, and has promised to keep interest rates lower for longer, and has not yet formally announced a decision to taper asset purchases. This accommodative stance has helped the whole stock market bounce up, not just S & P.
Another help was the $1400 Stimulus checks, held back by Pelosi, all year (2020) long.
Just more indications of Democrats mismanagement of the economy.
Whoops almost forgot >> Biden's new elimination of the Mexican border. Will be interesting to see how much more US business loses, due to the massive increase in remittance $$$$$$$$$$$$$ leaving the country, instead of going to the those US businesses in American stores.
If Democrat Skippies had any sense, they wouldn't talk about the economy.
Inflation anyone ?
NO country stops remittances from foreign workers. That's just cheesy behavior.