The standoff only serves to highlight the intensifying acrimony on Capitol Hill, where Democrats on Monday are also set to forge ahead on their plans to adopt as much as $4 trillion in new spending initiatives backed by Biden. That includes a plan to improve the nation’s infrastructure, which Republicans support, and another that raises taxes to fund new health-care, education and climate initiatives, which the GOP opposes. Those measures also hang in the balance, as the House had hoped to begin debating them — and potentially hold votes — as soon as this week.