Wall Street posted modest midday gains on Tuesday, as investors digested the latest developments in President Donald Trump's trade policy agenda.On Monday, the Office of the U.S. Trade Representative (USTR) announced a three-month suspension of the planned 25% Section 301 tariffs on Chinese imports, including chip-containing components such as GPUs, motherboards and solar panels.Small-cap stocks outperformed large-cap peers, buoyed by signs of labor market resilience. Stronger-than-expected job openings and ...