Bill Trump signed into law combines $900 billion in COVID-19 aid with $1.4 trillion in spending and reams of other unfinished legislation— House voted overwhelmingly to increase COVID-19 relief checks to $2,000, meeting Trump’s demand, but Senate outcome uncertain— ‘Surge on top of a surge’ filling hospitals in California, where virus restrictions likely to be extended— 5th candidate reaches final-stage testing in US, a crucial step to getting enough vaccines to protect world— Mexico might allow private firms to buy, distribute vaccines after questions raised about centralized control— Follow AP’s coverage at https://apnews.com/hub/coronavirus-pandemic, https://apnews.com/hub/coronavirus-vaccine and.