If Washington can get its act together, we may be on the verge of a new phase of the US economic expansion, according to Charles Schwab’s Liz Ann Sonders. She tells Yahoo! Finance’s Daily Ticker that prior to the government shutdown, the US and global economies had been accelerating a bit. She adds that several factors were lining up to indicate that the US was about to move into a phase of the recover in which business investment really picked up. “We started to really see some light,” she said. Sonders adds that the market’s valuation is reasonable, particularly given low interest rates, and she doesn’t see valuation as an impediment to the market moving higher.