Pressure is on for the U.S. government to reopen, says Charles Schwab's Nate Peterson, pointing to labor strains in airports being the latest sign of disruption. That said, he thinks the markets will continue to push risk aside as it expects a deal to come sooner or later. Nathan also tells investors to brace for a tech pullback, noting a historic RSI in the PHLX Semiconductor Index (SOX). As for the path ahead, he sees the upcoming earnings season as critical for the bull run to continue.