What was the first thing barak obama did after becoming elected?

Well the answer I got was to sign a law expand children health, not sure if it's correct.

The embargo act of 1807  was a law passed by the united state congress and signed by president thomas jefferson on december 22,  1807. it prohibited american ships from trading in all foreign ports. in 1806, france passed a law that prohibited trade between neutral parties, like the u.s., and britain.