Probably not. Currently more than 50% of the bitcoin miners and corporations are from China. These guys control and own the supply of bitcoin, meaning that they influence most of the trading going on on the market. If the US is going to beat that, they will have to acquire more mining power, or the government will have to make a statement on the lines of "Bitcoin is awesome! Invest in it!", which will most likely never happen.
Yeah, since china market cap dominating bitcoin miners and the majority of bitcoin transactions over the last month came from yuan trades, indicates USD is behind them. USD might as worldwide accepted currency, dollar was the dominant currency, but that started to change in the end of 2013, as the volume of CNY transactions increase and now dominate about 90% of bitcoin transaction, no chance for USD rule bitcoin trading.