Hilary Clintons pledge is just a political strategy to attract more voters and for her to win the next election. But this is a good news to bitcoin industry, government backing up bitcoins will increase bitcoins stability in the market. I foresee an increase in bitcoins price if Clinton will win the presidency and I hope she will win so it will benefit us bitcoin users.
Donald Trump will probably see Bitcoin as a threat, seeing as he can't directly control it, and outlaw it completely.
Mark my words, that guy will destroy your countries' economy.