Obviously, someone had answered already that US didn't banned Bitcoin or crypto in general.
Now to get their US Binance platform and to fully satisfy US regulations, they have partnered with this so called company, BAM Trading Services, it is a California based company, it is registered as a money services with US FinCen. As far as the effects, we still don't know it, it was just recently launched and remember that not all states supported Binance.US as well. I think you can't created an account if you lived in Texas and New York so that's a minus for Binance for sure. So we really can't say if it will push the price or not, but I guess the good news their market is really expanding and in the long run we might see the impact positively.
Even If not all state accepts the cryptocurrency is US, but at least, United states in quote is no longer frowning at the use of cryptocurrency again, they just want it regulated, and they just dont want anything that they feel will disrupt the system they have built on ground for years which is the system of fiat.
Overtime, I believe that when other states sees how sweet the use of cryptocurrency is and how it is beginning to benefit other states, then their major could also join in the raise also. We just have to take things easy in this cryptocurrency market, otherwise we will get ourselves confused. It has been days now since the platform has been launched and I have still not seeing much increase In the value of binance, but anyway, patience is all we need, I am sure that we will still see that change on value as we proceed.