The Senate steered on Friday toward a voting marathon on Democrats’ $1.9 trillion COVID-19 relief bill … The chamber planned to begin voting around midday on a mountain of amendments, mostly by GOP opponents and virtually all of which were destined to be rejected. That would set the Senate on course toward approving its reworked version of the massive measure, probably over the weekend, and shipping it back to the House so it could whisk the final package to Biden for his signature.