 Money news at 10 and 40. Stock futures are slightly higher this morning following the news that President Biden has dropped out of the presidential race. But some investors are bracing for the potential of the news will break markets out of a prolonged period of low volatility. One expert tells the Wall Street Journal Biden stepping down is a whole new level of political uncertainty. And this may be the catalyst for market volatility that is overdue. Another expert tells CNBC, though, the fact that Biden endorsed Kamala Harris reduces uncertainty.